OzVMX Forum
Clubroom => Tech Talk => Topic started by: yamaico on April 21, 2013, 09:59:21 pm
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With Firko and Jim's twins on the way, and the concept of the forthcoming twin class gaining interest, I've made a start on a budget (surprise, surprise) twin racer. I picked up an RD350 for free a couple of months ago.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00654_zps7666bee5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00654_zps7666bee5.jpg.html)
It had been sitting in a shed on the south coast of NSW close to the ocean, so it's a bit rusty, but quite original and not butchered (well not until I got to it anyway). The pistons were stuck in the bore but a soak with acetone/ATF and it freed up nicely.
Stripped it down and fitted up a back wheel that was a spare rear wheel for my Yamaico that had a K180 on it.The front wheel is off a CR450 that I bought and fitted it up with a new K180. It'll be laced up to an MX250 hub later.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00676_zps04d76945.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00676_zps04d76945.jpg.html)
The frame will be hacked up with virtually just the cradle remaining, with a DT top bar and seat rails to be grafted on, but to keep it all straight while I de-rake it I've just cut out the top bar so that I can pull the steering head back to 25 degrees.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00679_zpsb90a25c7.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00679_zpsb90a25c7.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00680_zpsca12f9b4.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00680_zpsca12f9b4.jpg.html)
This will be a fun project...
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What's the estimated finish date Pete? I've got a warm and fuzzy feeling that this one will top 'em all ;D. I'll have to put some effort in on the el Cheapo TM250 for the 'Cheapo Challenge 2013' ;D The answer re your crank question was a resounding yes, it would require balancing, from Frank btw. Jonesy and I went over to his place today to help him get his Matchy going....Blair Harley was there too.
If it's not finished and you're not in Vietnam, Uzbekistan or Costa Rica around at DT Nats time you're on the OW72 if we can get it together in time. Failing that youre welcome to throw a leg over 'Little Red' the mystery framed 360 Yammy tracker.
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Looks interesting, i saw a yamaha RZ350 on ebay and was pondering it as a DT.
Whats this about the el cheepo challenge, i am trying to build a bike right now for sub $2k, is this a contender in the el cheepo 2013. All of the costs seem to add up just to make it reasonable and replace all the bearings incl swing arm ones etc....
Brett
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crank rebalance?,ah,i detect a hint of twingle approaching 8), :P
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What's the estimated finish date Pete? I've got a warm and fuzzy feeling that this one will top 'em all ;D. I'll have to put some effort in on the el Cheapo TM250 for the 'Cheapo Challenge 2013' ;D The answer re your crank question was a resounding yes, it would require balancing, from Frank btw. Jonesy and I went over to his place today to help him get his Matchy going....Blair Harley was there too.
If it's not finished and you're not in Vietnam, Uzbekistan or Costa Rica around at DT Nats time you're on the OW72 if we can get it together in time. Failing that youre welcome to throw a leg over 'Little Red' the mystery framed 360 Yammy tracker.
Hope to get this one finished before the Nats Mark, but I've got a lot on my plate at the moment. If not having it finished means I can ride your OW, then I don't think it will be ;D
I pretty much new that the crank would need balancing. I'll do that when I pull the motor down.
Looks interesting, i saw a yamaha RZ350 on ebay and was pondering it as a DT.
Whats this about the el cheepo challenge, i am trying to build a bike right now for sub $2k, is this a contender in the el cheepo 2013. All of the costs seem to add up just to make it reasonable and replace all the bearings incl swing arm ones etc....
Brett
The more the merrier Brett. Under $2K is definitely a contender.
crank rebalance?,ah,i detect a hint of twingle approaching 8), :P
You're almost on to me Mick. I was thinking about trying a 90 degree offset and eliminate that deadspot at TDC/BDC that 180/360 twins have. Might be right off the mark, but it's an easy experiment.
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:P :P :D
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Whats this about the el cheepo challenge, i am trying to build a bike right now for sub $2k
2K is a positive kings ransom for Yamaico Pete. I think he's aiming to bring this in at $800 or less. The challenge involves the TM/TS250 Suzuki I built using the old mate network and skip bin parts and my stored away stash for $100 that we covered in a couple of early VMX editions. The bikes sat doing nothing since not long after it was completed so I'm very slowly converting it into a flat tracker to give to a mate who's doing it tough for Christmas this year. The same el Cheapo concept that I used to originally build the bike and that Pete has taken to new levels is being used. Once I get a bit further into it I'll post some progress shots. Below, the $100 TS250 powered TM250 that'll soon be a flat tracker.
(http://i1112.photobucket.com/albums/k495/firko2/DSCF0022.jpg) (http://s1112.photobucket.com/user/firko2/media/DSCF0022.jpg.html)
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Here's one that was on vft.org recently.............................
(http://i1112.photobucket.com/albums/k495/firko2/03Mar27-YamahaRD350_zps9b595065.jpg) (http://s1112.photobucket.com/user/firko2/media/03Mar27-YamahaRD350_zps9b595065.jpg.html)
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geezas 90 deg,thats doing me head in ,won't sleep now ???, :P
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The bike cost me 1000 to start with, So the sub 2k is about as low as i can go as i dont have a stack of new parts, also i really dont want to put in all the time and try to skint too much on the rebuild.
Brett
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The is no 'dead spot' in 0-180 firing and 90 deg will need a balance shaft and an ignition to make it run. RD crank will be up to the job though. 90deg will produce unusual and annoying vibes.
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http://www.bikeboneyard.com/yamaha%20rd-350%20flattracker.html (http://www.bikeboneyard.com/yamaha%20rd-350%20flattracker.html)
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The is no 'dead spot' in 0-180 firing and 90 deg will need a balance shaft and an ignition to make it run. RD crank will be up to the job though. 90deg will produce unusual and annoying vibes.
From my perspective there is a flat spot as each piston reaches a point of zero speed at the same time. The 90 degree crank was just an idea to reduce the inertia torque period. It could just as well be 10 degrees. "Big bang" is a bit of a black art anyway - Hope you got some sleep last night Mick ;D
The ignition is no problem and I will discuss the difficulties of balancing it with Frank from "Frank's Cranks", even exploring the twingle option.
It's no big deal either way, and it would probably be hard to even detect the difference, but it's something different.
I've had the cylinders off my motor and the crank is perfect, so if I leave it at 180 degrees it will just need to be trued up and put back in.
The motor is filthy but from all indications has never been apart. It doesn't even look like the countershaft tab washer has ever been turned down. The bore is original and measures to well within tolerance. Even the ring end gaps are good, but I'll replace them as standard rings are cheap as chips, as well as the little ends and gudgeons. Looks like all this will need in addition to that is a set of seals and gaskets. The whole bottom end turns over very smoothly, so the bearings will probably be OK.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00682_zps2e218947.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00682_zps2e218947.jpg.html)
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I suggest you replace the mains, external crank seals and big end rollers,
Consider a 2 into 1 exhaust.
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Pete know's what he's doing, he's been there and done that and sometimes, done it twice.
It'll be a decent thing for sure and brought in on a budget.
This is along the lines of my T20 Suzuki weapon that Pete was keen to help me with, injury and financial's put a stop to that.
I just wish I had the same motivation.
Love your work Pete.
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Thanks Steve. We still need to get that T20 ready for the twin series, so start saving those pennies...
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Not for 1 second do I think people on this forum don't know what they are doing,
That said occasionally people make mistakes,
Not putting some new parts in that bottom end would be a big one,
I would gladly give you the parts for nothing than have it go ar$e up,
Cant waste any twins entries can we.
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This is along the lines of my T20 Suzuki weapon that Pete was keen to help me with, injury and financial's put a stop to that
Hey Steve, do you still have the Suzuki Hustler? I reckon once you make a start start on it, the motivation to finish it will come back. Finishing the little 360 tracker that had sat gathering dust for two years has pumped a lot of my previously missing mojo back into my system to the point that I'm jumped straight into the next job....finally finishing the Hindall motocrosser which has had four or five false starts over four years. Finishing a race project is the best cure to all sorts of ailments, I'd almost forgotten why I started doing this in the first place but it's all clear now. ;) Give it a shot Steve, you know you want to blow Jimmy and his new/old Trumpy off ;D
(http://i1112.photobucket.com/albums/k495/firko2/vintage_ahrma_trackmaster_flat_track_1500_dennis_ks_11620807_zps98a1edea.jpg) (http://s1112.photobucket.com/user/firko2/media/vintage_ahrma_trackmaster_flat_track_1500_dennis_ks_11620807_zps98a1edea.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/073_TrackmasterSuzuki55_zps8d7f6480.jpg) (http://s1112.photobucket.com/user/firko2/media/073_TrackmasterSuzuki55_zps8d7f6480.jpg.html)
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I just love this super clean RD350 tracker........
(http://i1112.photobucket.com/albums/k495/firko2/DSC00359_zpsb69fbf23.jpg) (http://s1112.photobucket.com/user/firko2/media/DSC00359_zpsb69fbf23.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/DSC00360_zpsaff24833.jpg) (http://s1112.photobucket.com/user/firko2/media/DSC00360_zpsaff24833.jpg.html)
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Lovely bike, but I have seen better pipes
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From my perspective there is a flat spot as each piston reaches a point of zero speed at the same time. The 90 degree crank was just an idea to reduce the inertia torque period. It could just as well be 10 degrees. "Big bang" is a bit of a black art anyway - Hope you got some sleep last night Mick ;D
The ignition is no problem and I will discuss the difficulties of balancing it with Frank from "Frank's Cranks", even exploring the twingle option.
Pistons have to stop but the crank keeps turning, the crank provides the inertia not the piston. The rod is being pushed by the piston to 90 deg then to 180 the rod is pulling the piston, then to 270 the piston pulls the rod and finaly the rod pushes the piston to TDC.
The tyre is there to work not to rest and the theory of big bang engine 'giving the tyre time to rest' was put out to pasture by Masao Furusawa.Was never a black art to him just the rest of us didn't know what was going on.
The only way 90 deg firing works in a twin is with a 90 deg V twin with crank pins in line would work a treat in a inline 4.
http://www.sae.org/mags/aei/5586
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Already a great engine been developed by the best,
For Dirt the mods are a Long Rod "DT200" crank, still 350cc but works better or a capacity increase,
stroker like the 400, a big bore, or a combination of both.
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Here's another nice RD and a TZ/LC.......
(http://i1112.photobucket.com/albums/k495/firko2/09sep18championrd350_zps926acc76.jpg) (http://s1112.photobucket.com/user/firko2/media/09sep18championrd350_zps926acc76.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/5744451411_26460870d1_z_zpsac1916b8.jpg) (http://s1112.photobucket.com/user/firko2/media/5744451411_26460870d1_z_zpsac1916b8.jpg.html)
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Keep going Mark the more the better,
Especially the TZ
I am waiting to see a photo of Askland / Roberts on a 350.
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(http://i1112.photobucket.com/albums/k495/firko2/Yamaha-Champion_TZflat-track_SIDEBURN_zps98defe4d.jpg) (http://s1112.photobucket.com/user/firko2/media/Yamaha-Champion_TZflat-track_SIDEBURN_zps98defe4d.jpg.html)
But enough of hijacking Pete's thread. This is about his bike not other peoples interpretations ;)
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Pistons have to stop but the crank keeps turning, the crank provides the inertia not the piston. The rod is being pushed by the piston to 90 deg then to 180 the rod is pulling the piston, then to 270 the piston pulls the rod and finaly the rod pushes the piston to TDC.
The tyre is there to work not to rest and the theory of big bang engine 'giving the tyre time to rest' was put out to pasture by Masao Furusawa.Was never a black art to him just the rest of us didn't know what was going on.
The only way 90 deg firing works in a twin is with a 90 deg V twin with crank pins in line would work a treat in a inline 4.
http://www.sae.org/mags/aei/5586
From my memory of high school physics Newton's first law of motion defines inertia as the property of a body to resist a change in motion. A piston has mass and is therefore a body and when in motion exhibits inertia. As I understand it, piston inertia is what generates the positive and negative torque pulses prevalent in a conventional 180 degree twin crank. A 90 degree crank virtually eliminates the positive and negative pulses because as one piston is slowing down the other one is speeding up. The inertia that the decelerating piston is gaining is negated by the inertia that the accelerating piston is losing, resulting in an overall kinetic energy flow of almost zero. This, I believe, is said to be what is responsible for the better throttle control and decreased tyre wear of the 90 degree configuration.
Anyway, enough cyber building and on with the job ;)., although I'm reluctant to build any pipes for it if the ones on this bike are not considered up to scratch ??? ???
I just love this super clean RD350 tracker........
(http://i1112.photobucket.com/albums/k495/firko2/DSC00359_zpsb69fbf23.jpg) (http://s1112.photobucket.com/user/firko2/media/DSC00359_zpsb69fbf23.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/DSC00360_zpsaff24833.jpg) (http://s1112.photobucket.com/user/firko2/media/DSC00360_zpsaff24833.jpg.html)
Pulled the head angle back to 25 degrees with the aid of a porta-power, digital spirit level and a bit of heat to relieve the stress once the angle was right.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00685_zps8e1597df.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00685_zps8e1597df.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00686_zpsb34d796c.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00686_zpsb34d796c.jpg.html)
This has of course shortened the wheelbase even further so I'll have to make a new swinging arm to get the wheelbase up to around 55-56". Next, I'll cut up what's left of an old DT frame and graft the backbone and seat rails into the RD frame, after I've cut off all the side frame components from the RD frame.
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You're rekindling my interest Pete :-\ ;)
Interesting to see how similar the RD frame is to the early T20 chassis.
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are rd400's allowed in the twin dirt track class?who sell that digital spirit level and was the bending of the frame tubes done cold or with the aid of a oxy torch?
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You're rekindling my interest Pete :-\ ;)
Interesting to see how similar the RD frame is to the early T20 chassis.
That's good Steve, let's get 'er done. :D
The frames are similar. I don't know about the T20 but the RD is a heavy lump. The bikes weighs about 350lb, but I reckon with the alloy rims, little hubs, fibreglass tank and seat, lightweight chambers, the frame mods and binning the side covers, battery box, air box, lights, mudguards etc I should be able to drop off at least 100 of those pounds. Combine that with probably 40hp (at a minimum) it should be a bit of a weapon.
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are rd400's allowed in the twin dirt track class?who sell that digital spirit level and was the bending of the frame tubes done cold or with the aid of a oxy torch?
SON should be able to answer the eligibilty question Matt, but I don't see why not.
I bought the spirit level when I was working in the US a couple of years ago. It's a "Husky" brand but it doesn't have a model number. I bought it from Home Depot, but here's one of hundreds on ebay that will do the job:
http://www.ebay.com.au/itm/Aluminum-Digital-LCD-Angle-Slop-Finder-Meter-Protractor-Spirit-Level-/350753968456?pt=AU_Input_Peripherals&hash=item51aa90d148
I just used a bit of heat to get it to move to the desired angle and then heated all around the downtubes and then let them cool naturally, with the porta-power still in place. It didn't spring at all once I released it.
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Pete do you still have the grab rail don't know if it is the same but looks as though it might be mine on my 76 rd250 is broken I doubt you will run the same tank as mine I am doing it as original and it has the coffin tank and dg pipes. :)
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Hi Michael,
I still have the grab rail and the tank. The grab rail has a bit of surface rust but the tank doesn't look too bad. The pipes are very rusty so not much use but you're welcome to whatever you want. You should be able to cross reference the parts numbers but I would assume they would be the same.
Pete.
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Thanks Pete that is ok I think I can just oxy weld my rail it is only in one spot but thanks for offering and the tank I have sorted here is a pic.
Is the front rim off the bike salvagable as mind has a massive flat spot I sourced one other but it was slightly different.
(http://i656.photobucket.com/albums/uu283/frostype400/1e967aa6.jpg) (http://s656.photobucket.com/user/frostype400/media/1e967aa6.jpg.html)
(http://i656.photobucket.com/albums/uu283/frostype400/8b2f9e2d.jpg) (http://s656.photobucket.com/user/frostype400/media/8b2f9e2d.jpg.html)
Cant see the flat spot in this shot but it is a decent on this is not long after I got the bike.
(http://i656.photobucket.com/albums/uu283/frostype400/DSCN0172.jpg) (http://s656.photobucket.com/user/frostype400/media/DSCN0172.jpg.html)
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I just found this pick other side looks like the rail is different after all sorry for the hijack.
(http://i656.photobucket.com/albums/uu283/frostype400/DSCN0173.jpg) (http://s656.photobucket.com/user/frostype400/media/DSCN0173.jpg.html)
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are rd400's allowed in the twin dirt track class?who sell that digital spirit level and was the bending of the frame tubes done cold or with the aid of a oxy torch?
Yes certainly are
We might end up with handicap races to balance things
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ok Pete and Son ill watch Petes bike like a lot of others here with much interest!!theres a rd400 at the wreckers ill have a look at soon and see how good or bad it is,hopefully the motor is in good nick as that's where the big bucks go if its not up to it ;) ;D
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Just received a free t20-67 complete just been sitting under a tarp for 30yrs, am I giving it away at $500.
Good to see an RD in progress!
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Hurry all your entries to Nepean Syd. West round two with these!
I want to see them go!
cheers pancho.
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Got started on the swingarm. Cut the shaft out of the old RD one and started to make a new one with some 50x25 rhs. It's a little bigger than I wanted to use but was easy to source and is the same size as a DR250, so should be OK. I still have to cut the axle slots in and make a brace for the front but I'll wait until I work out the exact length before I weld it all together as I have some decisions to make on the front end.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00689_zps72ba31f1.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00689_zps72ba31f1.jpg.html)
I have some old 250 Kawasaki road bike front forks that are 36mm and in perfect condition. I also have some 36mm IT forks that are in poor condition but have good sliders, but they are leading axle. Their associated triple clamps have very little offset as opposed to the RD ones that have a lot of offset. I took some measurements of the frame and the triples so I need to draw it all up with the 25 degrees of rake and see what combination gives me around 100mm of trail. If I end up using the RD clamps I'll need to bore them out from 34 to 36mm. Once that's decided I can go ahead and finish the swingarm to get me to the 55-56" wheelbase that I'd like.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00690_zps0eddd3d6.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00690_zps0eddd3d6.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00691_zpse09b45c2.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00691_zpse09b45c2.jpg.html)
Just as an aside I weighed the two back wheels and there is over 6kgs difference.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00692_zpsbfc50b6f.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00692_zpsbfc50b6f.jpg.html)
Shouldn't be too hard to shave a fair bit of weight off this old lump.;D
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Checked all my triple trees and found an old set of Yamaha ones that, in my opinion, had the best combination of offset and trail for the 25 degrees of rake that the bike now has. They were only for 34mm forks so made up a quick boring bar to take them out to the 36mm required for the Kawasaki forks.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00693_zpsa916623e.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00693_zpsa916623e.jpg.html)
As I don't have my mill set up yet I had to use a little drill press that I have. Found a bit of plate to bolt the trees to which was then bolted to the drill press bed. The mandrel on the boring bar is exactly 34mm which enabled fairly accurate alignment of the triple tree to the boring bar. Did a test run on the lathe to set the key steel in exactly the right place to bore to 36mm, which was very fiddly and took ages.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00698_zps79e5e61f.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00698_zps79e5e61f.jpg.html)
Bored the first one and it went well until the guide mandrel came through the bottom and it started to chatter a bit.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00699_zps4999bfd5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00699_zps4999bfd5.jpg.html)
Quickly made up another mandrel at a shade under 36mm which stopped the chattering at the bottom.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00700_zps9cd7cfe4.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00700_zps9cd7cfe4.jpg.html)
Finished all four holes which all came out quite well. Bead blasted the top tree ready for powdercoating but the bottom one must be in two pack as the bead blaster wouldn't touch it. Will have to get some paint stripper on to that. ???
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00703_zps54183131.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00703_zps54183131.jpg.html)
Have to fit the forks up into the frame then work out how much they will need to be shortened. Can't drop them through much as the bars are across the top of the fork tubes. Also have to weld a lug onto the lower left hand leg for the front brake plate lug.
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When you mentioned the chatter as the support disappeared I was thinking do I mention making an upper sized support, then I saw the next photo & comment.
Very nicely done, will be keeping a watch on this thread
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keep these home brew special tools coming Pete. like tony27 I was thinking the same about a top support,proberly not a problem on a milling machine but drill presses arnt as tight in that area.as to the rd400 but was at the wreckers that's gone and he cant remember who brought or even when it was sold ???
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as to the rd400 but was at the wreckers that's gone and he cant remember who brought or even when it was sold ???
Keep looking Matt - should be plenty of them out there...
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There was an LC roughy on eBay recently....not sure how they'd go modded for dirt track though.
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sooner air cooled,hate getting coolant on my hands.besides that its more things to go wrong and lets face it its only 3 or 4 lap races.bike u mentioned I couldn't find it anyway
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There was an LC roughy on eBay recently....not sure how they'd go modded for dirt track though.
LC great on Dirttrack just the right amount of Power and Flywheel
Chambers and Powerband are the Secret
Contemplate a Banshee 2 into 1 Exhaust and a 1 into 2 Carb setup
I have tried both on a 350 LC engined Suzuki Quadracer and it was great
But that was 20 years ago
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Did some work on the swingarm tonight. Coped the rhs for the pivot tube and cut the axle slots. Made the slots 60mm long to give plenty of adjustment.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00704_zps26615912.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00704_zps26615912.jpg.html)
Tacked it together ready to try it in the frame, which is in another shed.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00706_zps7f003ebf.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00706_zps7f003ebf.jpg.html)
If it all fits up OK then I can finish welding the pivot tube in, weld in the brace and gussets, cut it to length and make up the wheel adjusters.
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Small break in transmission as I am at work overseas. :(
Normal programming to resume in a couple of weeks ;D
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Back home from O/S for a week so got the swingarm tube and stiffener welded in.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00744_zps082578ba.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00744_zps082578ba.jpg.html)
Made up the wheel adjusters and plates for the inner shock mounts.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00745_zps9cd144f5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00745_zps9cd144f5.jpg.html)
Picked up some Marzocchi shocks from the wreckers for $25. Will just put a kit through them and they should be fine.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00746_zps8592999c.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00746_zps8592999c.jpg.html)
Hoping to have time to get the frame modes done before going back overseas.
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Looking good
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Very tidy, starting to think about a twin once my RM500 is done in couple of weeks, I'll time on my hands again got to busy or the wife will have me working on the house ;D
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Hey Pete, can I ride the 350 when you're on my 750 8)? Looking good matey.
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Hey Pete, can I ride the 350 when you're on my 750 8)? Looking good matey.
No worries Mark, got the 57's done already ;D
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Did a bit of work on the frame. Cut out the bits of an old DT frame that will be grafted into the RD frame
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00760_zps2260283f.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00760_zps2260283f.jpg.html)
Put the swingarm in the RD frame and took some measurements
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00761_zps04e6135a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00761_zps04e6135a.jpg.html)
Cut the sidebars and seatrails out of the frame, which weighed a ton
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00762_zps6be94a69.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00762_zps6be94a69.jpg.html)
Ready to start putting the frame together - might have to go to Bunnings and get some "no more gaps".
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00764_zps656b3e52.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00764_zps656b3e52.jpg.html)
Once that's finished the final mock-up can be done. Have to go back O/S on Monday, so it'll have to wait until after that.
:(
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It's all about style Pete............Looking great. Are you coming to the Show and Shine by the way?
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I am impressed its looking good.
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It's all about style Pete............Looking great. Are you coming to the Show and Shine by the way?
Hopefully I'll be back in time Mark. Not sure yet if there's any room for my bikes, but I'll come up.
Update: Ted's just posted a reply and my bikes are in. ;D
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Cleaned up all the areas where bits had been cut off and then modified the frame side bars so they meet up, ready to be coped into the backbone
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00767_zps81ab15c1.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00767_zps81ab15c1.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00766_zps39f18290.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00766_zps39f18290.jpg.html)
Looks like it will fit up pretty good. Just need to extend the backbone up to the steering head and cope the end ready to weld. Once that's in place new rear loop struts can be added in with tapered reducers machined up to accommodate the difference in diameters
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00765_zpsf31e8cfd.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00765_zpsf31e8cfd.jpg.html)
It's a bit hard to spot in the photo but the old DT frame is as straight as a dog's hind leg, so that'll need to be straightened out before it's welded in. Seen a lot of DT frames and none of them seem too straight ???
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00769_zps9d6e1973.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00769_zps9d6e1973.jpg.html)
Put both frame pieces on the scales and they weigh 12.2 kgs. Haven't got the complete rear loop struts yet but still have the side stand, pillion pegs and a number of other brackets to come off, which might take another kilo off, so it's no lightweight but not too bad.
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Bought a throttle assembly from the bikeshop across the road from my hotel - just under $9. Throttle, grips, and cable - can't go too far wrong as you can't even buy a universal throttle cable at home for that amount. It's not a geared one so has no moving parts to speak of and on the packaging it guarantees high performance motorcycle, top acceleration. The works teams will be all over these when they get wind of them ;D
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00788_zpse01e5309.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00788_zpse01e5309.jpg.html)
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Buy 2 Pete
You,ll need the spares
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Pete......you obviously missed my posts on the down side of using a cheap throttle. Mine was months off work and a lot of pain. When are you home mate? I pick the "BIG PROJECT" up on Monday.
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Buy 2 Pete
You,ll need the spares
;D ;D ;D
Pete......you obviously missed my posts on the down side of using a cheap throttle. Mine was months off work and a lot of pain. When are you home mate? I pick the "BIG PROJECT" up on Monday.
I'm in the airport now Mark, on my way home, just in time for the display on Saturday. I'll be up at Casa del Firko checking that 750 out next week.
Spotted an early RM in a bikeshop near where I was staying in Rayong. Don't know much about Suzukis but it was watercooled with a drum front brake and looked like about a 250. The driver I had is going to find out what they want for it. Good job for the hand luggage over the next few trips :)
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Cool Pete.............Not looking for a project by any chance? With all of that spare time you have, this might be just the ticket to fill up those loose hours ;D Nobody seems interested in the idea so it must be dumb.
Re: Pre 60 bike for CMX titles in Canberra
« Reply #5 on: Yesterday at 11:30:04 AM »
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Here's something right out of left field......Because I really want to see the Pre 60 class go off at Kumagutza, I'm willing to supply a C15 BSA frame, Harley back wheel, Goldy front hub, 1959 T100SC Triumph core motor and a set of new motocross high pipes, BSA B44 tank and whatever else is needed to build the bike to ride in the pre 60 class at the Nats. All you have to do is build it. I'll still own the bike of course but you get to ride it at the Nats and as many NSW big meetings as you can squeeze in without hammering and old bike into the ground. There will be a decent bit of fabrication, an engine rebuild (I pay for parts), one front wheel to build, paint, and the squillion little things involved in building a hot rod TriBSA.
I'll supply and pay for the parts but you do the work and ride the thing for a season or longer if the relationship works out. My only stipulations being that you live in the Sydney Metro area or no further than Wollongong/Newcastle, are reasonably familiar with British bikes and are proficient enough to fabricate and weld the needed parts and frame mods so the bike is built to an acceptable standard and that you've got a clear schedule with plenty of shed time and no other projects on the go. Everything else is negotiable............What do you reckon, am I asking too much?
« Last Edit: Yesterday at 11:45:57 AM by firko »
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Cool Pete.............Not looking for a project by any chance? With all of that spare time you have, this might be just the ticket to fill up those loose hours ;D Nobody seems interested in the idea so it must be dumb.
I'd be all over that Mark but the RD and work and new house are occupying all of my time.
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Did a bit more on the frame tonight. Machined up some tapered reducers to go between the existing 25mm thick walled tubes and the standard 19mm tubes that support the rear loop.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00789_zps966d5dc9.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00789_zps966d5dc9.jpg.html)
In place ready to weld up.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00790_zpsd6ef55c8.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00790_zpsd6ef55c8.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00792_zps9649f0f5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00792_zps9649f0f5.jpg.html)
Ended up cutting the frame loop from the backbone as it is just too far out of wack. Once the backbone is welded in then the loop can be properly aligned and welded back in.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00793_zpsca444a80.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00793_zpsca444a80.jpg.html)
Now to get a couple of bikes cleaned up ready for Ted's show on Saturday...
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You are the master of outside of the square Pete.
Looking good.
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I'd be all over that Mark but the RD and work and new house are occupying all of my time.
Yeah I figured that Pete....I was being a bit sarcastic/ironic ::). See you on Saturday ;).
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Good work Pete, I love those reducers,
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Hey SON, when are you picking up your Starracer T500? I'm picking up the Shell OW on Monday and I think Jimmy's getting his Yetman Triumph tomorrow. I'm picking up the 750 Trumpy motor that's going in my Trackmaster on Sunday....... I can't wait ;D
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Finally got to do a bit more work on the RD. Tacked in the backbone and the seat loop.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00831_zps1256190d.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00831_zps1256190d.jpg.html)
Sat the ratty old XR copy seat that I had and the brand new Knight style tank (many thanks to Firko) and it doesn't look too bad. The tank isn't the best fit so I might make an alloy one later if time permits.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00828_zps04d2d09c.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00828_zps04d2d09c.jpg.html)
Still need to gusset the steering head and then finish removing all the redundant frame brackets and make up brackets for the rear shocks, coils, footrests, number plates, tank, seat etc. Once that's done the pipes will need to be made, then the engine can be pulled down and rebuilt.
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Mate, that is going to look great. I've been following this build and you sure have great vision and skills.
Regards Mark
ps. can't wait to see it with the engine and pipes in place.
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Mate, that is going to look great. I've been following this build and you sure have great vision and skills.
Regards Mark
ps. can't wait to see it with the engine and pipes in place.
Thanks Mark. I've always loved the look of flat track bikes, they look fast just sitting there. Almost as good as a slider ;)
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Nice tank Petey. It's finally found a home where it looks good. It's all about style ;D. Try and keep next Easter free so we can take all of the flat track tackle down to the Broadford Bonanza. I can be cutting laps that little RD masterpiece while you're coming to grips with 'Vegas Bob'......(I'm turning into a Jonesy clone, naming my bikes. In this case I'm naming it after the great character that started the 750 resto). With my 4 flat trackers, your three and AJ an Edgar with a couple each Klub Kevlar can have a great little display and ride blowout on the great Broadford dirt track.
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Sounds like a plan Mark. It'll take me that long to get it finished at the rate I'm going. :(
Thanks again for the tank. It appears a little big in that photo, but looks alright in the flesh. Proper bars instead of the low set that are on it will improve things.
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It's a Knight tank but it's got a Maico feel about it in the photos. I reckon it looks sensational.
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It's funny you should mention that Mark, as I tried a couple of different Maico tanks and a Bully tank, and they all looked pretty good, but the old fibreglass worried me. That shiny new ethanol resistant Knight tank is the ticket.
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I've just found an RD350 sitting under a verandah. It is in better nick than Pete's but not by much.
How much should I offer ?
regards Mark
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I've just found an RD350 sitting under a verandah. It is in better nick than Pete's but not by much.
How much should I offer ?
regards Mark
I was lucky getting mine for nothing Mark, but I would reckon if you could pick it up for $500 - $600 you would be doing pretty well.....even up to a thousand if you have to as you won't have any trouble on-selling it if you need to. I really hope you get it and build one up.
Progress on mine has ground to a halt as I am still O/S but I am busting to get back and get stuck into it. I think it will be a hoot to ride, particularly as all the Yanks say you have to be crazy to ride one.
Pete.
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Thanks Pete,
I didn't think an old RD would be worth that much. Might be worth chasing.
Hmmm,.....RD Longtracker or an RD Flat tracker .
cheers Mark
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Any more progress?
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Just back from China last Thursday Graeme, so back into it this week, finally.
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Settled back in at home and started doing some work on the RD. Made up the seat mounts, coil brackets and rear shock mounts.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01340_zps0e8f2733.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01340_zps0e8f2733.jpg.html)
The tunnel in the Knight tank that Firko was kind enough to donate is really wide so made up some mounts to use Yamaha tank rubbers to give it a bit of stability. The tank only mounts on a single centre bolt so this should stop it flopping around.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01339_zpsd20572b2.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01339_zpsd20572b2.jpg.html)
Next will be a proper centre bolt mount for the tank, steering stops and gussetting around the steering head.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01338_zps459bf089.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01338_zps459bf089.jpg.html)
Everything is just tacked together for the mock-up. Once that's all finished the frame will be stripped bare and fully welded prior to painting.
Putting off making the pipes as I'm not really sure about the design at this stage ???
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Broadford Pete. Welcome home matey.
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2 up the RHS only way to go
I see the seat/base
what tank?
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2 up the RHS only way to go
I see the seat/base
what tank?
Knight tank Graeme, courtesy of Uncle Firko.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00828_zps04d2d09c.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00828_zps04d2d09c.jpg.html)
Two pipes up the right hand side was always the plan, just need to get my head around the design.
Broadford Pete. Welcome home matey.
Thanks Mark. Broadford's on for sure.
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Pete its always nice to see your work. You are a true credit to your craft. 8) Jimson
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The tank was still a little floppy so a saddle was made up and glassed into place with enough clearance between the saddle and the frame for a thin piece of insertion rubber,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01343_zpsb307ced9.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01343_zpsb307ced9.jpg.html)
Made the top tank mount and tacked in into place, bit fiddly to get it into the right spot,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01345_zpsbf1a01d4.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01345_zpsbf1a01d4.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01344_zps9fe71f04.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01344_zps9fe71f04.jpg.html)
Tank and seat bolted up and the line between the two looks pretty good. Tanks and seats not lining up spoils the whole look of a bike, in my opinion,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01342_zps29add7a0.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01342_zps29add7a0.jpg.html)
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This is along the lines of my T20 Suzuki weapon that Pete was keen to help me with, injury and financial's put a stop to that
Hey Steve, do you still have the Suzuki Hustler? I reckon once you make a start start on it, the motivation to finish it will come back. Finishing the little 360 tracker that had sat gathering dust for two years has pumped a lot of my previously missing mojo back into my system to the point that I'm jumped straight into the next job....finally finishing the Hindall motocrosser which has had four or five false starts over four years. Finishing a race project is the best cure to all sorts of ailments, I'd almost forgotten why I started doing this in the first place but it's all clear now. ;) Give it a shot Steve, you know you want to blow Jimmy and his new/old Trumpy off ;D
(http://i1112.photobucket.com/albums/k495/firko2/vintage_ahrma_trackmaster_flat_track_1500_dennis_ks_11620807_zps98a1edea.jpg) (http://s1112.photobucket.com/user/firko2/media/vintage_ahrma_trackmaster_flat_track_1500_dennis_ks_11620807_zps98a1edea.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/073_TrackmasterSuzuki55_zps8d7f6480.jpg) (http://s1112.photobucket.com/user/firko2/media/073_TrackmasterSuzuki55_zps8d7f6480.jpg.html)
stick the 315 barrels and carbs onit ;) still comeing to grips what the zook was mauling out there in the real world, no wonder they called them the Norton slayers
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Pete, can you cut a bigger scallop out of the back edge of the tank to get it sitting lower? I cut a little half moon so it'd fit the Hindall frame but it still needed to go lower as on yours. It's looking pretty good though. That tank mount's looking pretty groovy matey. I'll be making a start on the OW soon too. I'm parking all the motocross projects until I get it up and running.
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Love your work Pete, as always it's looking good.
The T20 is for sale if anyone is interested?
It's still an original, 99% complete road bike but has been completely stripped down.
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Pete, can you cut a bigger scallop out of the back edge of the tank to get it sitting lower? I cut a little half moon so it'd fit the Hindall frame but it still needed to go lower as on yours.
Do you think the tank needs to go lower Mark? It lines up well with the seat now and I can't get the seat any lower.
Love your work Pete, as always it's looking good.
The T20 is for sale if anyone is interested?
It's still an original, 99% complete road bike but has been completely stripped down.
Thanks Steve. Still happy to help with the T20 if you want to do it a little further down the track.
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Maybe l was looking at it funny Pete, it looks fine now. That's the first bike I've seen that particular tank suit. Alan and I tried it on 3 or 4 different bikes and it looked odd on them all.
Good work old mate.
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Finished the lower rear shock mounts and made up the wheel adjusters,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01346_zps7bf5f7e5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01346_zps7bf5f7e5.jpg.html)
Found a pair of handlebars that are a bit higher and feel good sitting on the bike,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01347_zps9f041cb0.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01347_zps9f041cb0.jpg.html)
Just need to make the side numberplate mounts and the battery box mounts and the frame can be stripped and fully welded.
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Stripped the front wheel, polished the rim, made some spokes and then assembled the wheel. Need to make some spacers to suit the forks and then weld a lug on for the brake plate locator. Just using the standard old conical Yamaha hub which are easy to find and work very well.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01362_zps66a614dc.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01362_zps66a614dc.jpg.html)
Unfortunately work stops for a while as I have to go back overseas until just before Christmas.
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you've had another busy weekend!
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Pete I would have a disc braked wheel if you prefer one.
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Hi Pete, great work. Curiosity is driving me nuts though and without any intent to start another rules bun fight.
Which class will this build fit at a National?
Cheers, mate.
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That is looking great Pete the RD rim that you sent me I had re chromed and it came up really nice I will lace them soon and send you a picture, thanks Michael.
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Pete I would have a disc braked wheel if you prefer one.
Thanks for the kind offer Graeme, but I'll stick with the drum. I was thinking about using the original disc off the RD but the conical hubs are nice and light and are easy to set up to work effectively. They are unobtrusive and I'm trying to keep with the traditional flat tracker look.
Hi Pete, great work. Curiosity is driving me nuts though and without any intent to start another rules bun fight.
Which class will this build fit at a National?
Cheers, mate.
Hey Mick, I'm thinking that it should fit in pre 75, and with dirt track not being as regulated as MX I'm hoping that the non original swing arm and frame geometry won't cause too many problems. If it becomes an issue I'll make a street bike out of it, or push it into the shed next to the B40 ;D
That is looking great Pete the RD rim that you sent me I had re chromed and it came up really nice I will lace them soon and send you a picture, thanks Michael.
Thanks Michael, glad you could use the rim. Look forward to seeing some photos.
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Hey Mick, I'm thinking hat it should fit in pre 75, and with dirt track not being as regulated as MX I'm hoping that the non original swing arm and frame geometry won't cause too many problems. If it becomes an issue I'll make a street bike out of it, or push it into the shed next to the B40 ;D
Thanks Pete, sort of what I was thinking. Have I missed something? is there a special Twin class in DT now that it can run in as well?
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Looking great Pete wish we had dirt track down here . Some down here are talking oval style grass track should be fun if enough get behind it .
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Hey Mick, I'm thinking hat it should fit in pre 75, and with dirt track not being as regulated as MX I'm hoping that the non original swing arm and frame geometry won't cause too many problems. If it becomes an issue I'll make a street bike out of it, or push it into the shed next to the B40 ;D
Thanks Pete, sort of what I was thinking. Have I missed something? is there a special Twin class in DT now that it can run in as well?
I believe there are a number of people working feverishly on their twins in anticipation of a class for them, Mick - at least I hope they are...
Looking great Pete wish we had dirt track down here . Some down here are talking oval style grass track should be fun if enough get behind it .
Oval style grass track would be great Iain, hope it comes off.
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[/quote]
If it becomes an issue I'll make a street bike out of it, or push it into the shed next to the B40
If it becomes an issue I"ll stone the complainer we need more bikes / riders / entrants
IMO for Flattrackers the engine is the unit
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If it becomes an issue I'll make a street bike out of it, or push it into the shed next to the B40
If it becomes an issue I"ll stone the complainer we need more bikes / riders / entrants
IMO for Flattrackers the engine is the unit
[/quote]
Pete you have had a week off
More photos????
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Sorry Graeme, away down the coast, but I did manage to sneak the tailpiece down there to straighten it up a bit. Told my wife it was part of the scoop off our boat 8)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01388_zpsb5c0e20c.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01388_zpsb5c0e20c.jpg.html)
Think that she may be on to me though.... ;D ;D ;D
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01393_zps09e59a90.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01393_zps09e59a90.jpg.html)
Back into it later next week before I go back overseas.
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Told my wife it was part of the scoop off our boat )
(http://i1112.photobucket.com/albums/k495/firko2/jackie_zps32295bb9.jpg) (http://s1112.photobucket.com/user/firko2/media/jackie_zps32295bb9.jpg.html)
Jackie doing her Vanna White 'Lets Make a Deal' impersonation ;D.
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Finally home long enough to get some work done. Finished welding all the frame mods, made the rear dirt shield, fitted the mounting brackets for the dirt shield and side number plates, fitted the steering stop and gusseted the steering head. Cut all the unused brackets off (side stand, centre stand, footrests etc.).
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01410_zps230aae90.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01410_zps230aae90.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01408_zps25b4e2f1.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01408_zps25b4e2f1.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01409_zpsc1a4a087.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01409_zpsc1a4a087.jpg.html)
Looks a bit different to the standard frame...
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC00676_zps04d76945.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC00676_zps04d76945.jpg.html)
Waiting for my brother to get home from Dubai to help me with the pipe design, so in the meantime I'll mock the bike back up in readiness. Might take the opportunity to paint the tank and seat and at least get that out of the way.
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Looking good Pete 8)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01408_zps25b4e2f1.jpg)
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Dubai?? You buggers sure get around Pete ;D Do you have family get togethers around the table comparing frequent flyer points :). I hope you're still in town at Easter so you and the RD (and IZ465 &Astro) can join AJ and I at Broadford.
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Looking good, Pete,
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Nice cut and shut job Pete ... I like it :)
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Added some stiffening into the swingarm so she doesn't flex under all that power,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01422_zps85951ccd.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01422_zps85951ccd.jpg.html)
Welded a couple of brackets on in anticipation of the dreaded rear chain guard rule,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01423_zpsf9354bf9.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01423_zpsf9354bf9.jpg.html)
The exhaust flanges will be the next things to get fabricated and then the pipes. Once that's done it's really just plating, painting, powdercoating and assembling.
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Nice work Pete. ( Put a bracket on there I hear you will soon have to cover rear wheels in case your fingers go in)
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Made up the left hand footrest bracket ready to be welded in place
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01426_zpsb93bc186.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01426_zpsb93bc186.jpg.html)
Apologies for the tidbits, sometimes big things get done, other times small things...
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couldn't help but notice the motor might need some attention... is there a plan for that?
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couldn't help but notice the motor might need some attention... is there a plan for that?
Sorry John, I wasn't real clear there. The motor is just in the bike now to mock everything up. Once that's all finished it'll get new seals, bearings, gaskets, rings, gudgeons, little ends etc. The motor is grubby on the outside but is in very good shape internally. In addition to the rebuild I'll dowell the heads so I can set up the squish correctly, re-angle the transfer ports, space the reed blocks so the booster port gets a chance to work properly and bore the carbies out a little bigger. I'll fatten the mixture a little on the midrange to soften the hit and I've got a PVL ignition coming to look after the spark (which has blown the budget out to over $1100). When I pull the engine down I'll soda blast the cases and then either paint or polish them - still deciding on that one.
Got the lefthand footrest mounted and made a short gearlever. I'm going to drill the clutch cover out for right hand gearchange option which I'll use depending on the track.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01428_zps1f9289c6.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01428_zps1f9289c6.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01427_zps83c4c8e5.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01427_zps83c4c8e5.jpg.html)
I'm using Harley footpegs so I'm hoping a little bit of that XR750 pedigree will rub off ;D
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Looking good my friend. I dig the Harley pegs, I've got Bates Harley pegs on the 360 tracker myself. I've made a tiny start on the 750 and will probably blog the build on my facebook page with an occasional update here once I get into it properly next week. I'm really looking forward to the project. AJ's back into his tracker project too so it's looking good for Broadford ...touch wood :-\.
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Looking good my friend. I dig the Harley pegs, I've got Bates Harley pegs on the 360 tracker myself. I've made a tiny start on the 750 and will probably blog the build on my facebook page with an occasional update here once I get into it properly next week. I'm really looking forward to the project. AJ's back into his tracker project too so it's looking good for Broadford ...touch wood :-\.
Good stuff Mark, can't wait to see that. All I have to do is keep in Australia for a while and I'll be OK for Broadford as well.
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Couldn't do much outside today because of the rain so spent a bit of time measuring the port durations and exhaust port size for the pipe design,
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01429_zps10550437.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01429_zps10550437.jpg.html)
Also machined up some aluminium washers for the number plates and cut the number plates themselves out of some lexan. Good to get some of the little jobs out of the way.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01430_zps2df0c6d7.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01430_zps2df0c6d7.jpg.html)
Checked the chain alignment and it was a little to one side so machined a spacer up to got behind the countershaft sprocket. The original RD sprockets are 530 and as I'm now using 520 sprockets there was a little bit of room for adjustment and luckily it worked out nicely.
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im impressed :)
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Finally got the PVL ignition which is much narrower than the old RD alternator setup so the points cover got the cut and shut treatment which gives good clearance around the gear lever.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01435_zps12dcd5b4.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01435_zps12dcd5b4.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01436a_zpsbb5165fa.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01436a_zpsbb5165fa.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01443_zps38b7b89b.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01443_zps38b7b89b.jpg.html)
Had to make new brackets for the coils as well
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01439a_zpscaa17ef2.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01439a_zpscaa17ef2.jpg.html)
Got the pipe design just about finalised so should be able to start on that next week.
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Beautiful Pete.
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Can you go a bit quicker on the build? Been watching the progress and I'm getting anxious to see the finished bike. Looking good.
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Can you go a bit quicker on the build? Been watching the progress and I'm getting anxious to see the finished bike. Looking good.
Sorry Lewis, I know it's dragging on but I'm getting it done while juggling work committments betwen here and overseas and trying to get a new house built at the same time. The house keeps me down at my new block until dark everyday and all weekend, so it doesn't leave a lot of time for project work. The good news is that when I get the house built I will have a new purpose built bike workshop and I will churn the projects out then.
If the slow progress is frustrating I can leave the updates and just post the bike in it's finished state.
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nooooooooo :o more pics
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just fooling around.I like what your building and I am wanting to see the finished bike. I reckon you'd be thinking the same. I hear it's good to be busy,not sure about that though.
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All good Pete, it's been very enjoyable keeping a casual eye on the build, should be a ripper when she's done. Tasty so far. 8)
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Rebuilt the shocks on the weekend - powdercoated the springs, polished the shock bodies and fitted new seals.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01446_zps378776a2.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01446_zps378776a2.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01449_zps1eb0266a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01449_zps1eb0266a.jpg.html)
Made up the brackets for the front number plate, cut some numbers and fitted the plate.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01445a_zps2fdb1ce7.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01445a_zps2fdb1ce7.jpg.html)
My brother came over last night and helped me finalise the pipe design, so will get started on it this week, finally...
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Rolled cones or Hydrolic ?
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Rolled cones Graeme - made a pump pipe for a blender once and that was hard enough :(, so I'll stick with what I know this time.
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Did the same to my XT500, didn't get it as narrow though..
(http://i1222.photobucket.com/albums/dd485/ola_martin/IMG_0290_zpscfcc5a4d.jpg)
Sorry to hi-jack...
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Brilliant Pete. Those Marzoccis look blingo and love the cut down ignition cover. Come on Broadford, I can spend a lot more time on my 750 now I've got mum into a home. I've forgotten what its like to have a whole day to myself.
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Good stuff Mark, get that 750 ready. Broadford here we come.
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Started on the pipes last night. Made up a template for the tapered header pipe:
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01453_zps180498ff.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01453_zps180498ff.jpg.html)
It looked like it would fit OK so the next thing was to draw up the cones on AutoCAD and develope the sections for the cuts. Converted the finished DWG file into BMP format and then printed it out on my sticker cutter:
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01452_zpsd1dd5203.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01452_zpsd1dd5203.jpg.html)
Transferred the sticker onto the body steel and then cut out all the pieces with tin snips, rolled them up and welded them together:
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01455_zps23c2a7ca.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01455_zps23c2a7ca.jpg.html)
Pretty happy until I remembered that it's a twin so have to go through it all again :(
Stick with the singles in future, I think....
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Pete, have you noticed that there is 6600 views of your thread?
You are an Internet star!!!!
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Pete, have you noticed that there is 6600 views of your thread?
You are an Internet star!!!!
Must be a record! Keep it coming!
cheers pancho.
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Pete, have you noticed that there is 6600 views of your thread?
You are an Internet star!!!!
I'd like to think that was the case Graeme but I reckon that the "dirt tracker" in the title gets rounded up by search engines. Either that, or my family are being kind to me and hitting it regularly...
Got the second header pipe made last night so I should be able to finish the pipes over a few nights next week.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01456_zps26e80eaa.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01456_zps26e80eaa.jpg.html)
Once they're done just need to get the right footrest bracket and the rear brake pedal made up. It's a bit busy in that area so I'll probably go with a cable rear brake. Have to find a front mounting point for the rear brake torque arm as well, but once that's all done it can be pulled down to start all the painting, powdercoating, zinc plating and polishing.
Polished up the oil pump cover which came up pretty nice so I'll probably go with polished covers, soda blasted crankcases and black heads and cylinders with the fin edges polished. I'd like the raw look on the heads and cylinders but they are quite corroded and I don't like using glass bead on any engine components.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01460_zpsfc2742c3.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01460_zpsfc2742c3.jpg.html)
About five weeks until Broadford so should be OK, hopefully.
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After burning the midnight oil a couple of nights this week just about got the piped finished. Still need to get some perforated steel and make the mufflers and weld the baffle cones on once everything is in place. Then it's just the hanger brackets and that job's done. Making the two pipes was certainly a challenge, but they fitted up OK in the end.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01472_zpsfdc0636a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01472_zpsfdc0636a.jpg.html)
Should get the pipes and right footrest and brake pedal finished this week so it can than be pulled down and the painting can start, along with the front fork mods and the engine rebuild.
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It's lookin' the goods, Pete
Foss
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Hey Pete, if you're doing the tank in Yellow Yamaha race colours I've got a graphics kit to suit a Champion tank that you may be able to copy. When you pick up my tank I'll give it to you.
Actually, I'm only using the tank graphics so you can have the seat decals.......PM me matey.
(http://i1112.photobucket.com/albums/k495/firko2/ChampionYamahasticker_zpsf4e65851.jpg) (http://s1112.photobucket.com/user/firko2/media/ChampionYamahasticker_zpsf4e65851.jpg.html)
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It's lookin' the goods, Pete
Foss
Thanks Al, she's getting close.
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Hey Pete, if you're doing the tank in Yellow Yamaha race colours I've got a graphics kit to suit a Champion tank that you may be able to copy. When you pick up my tank I'll give it to you.
Actually, I'm only using the tank graphics so you can have the seat decals.......PM me matey.
(http://i1112.photobucket.com/albums/k495/firko2/ChampionYamahasticker_zpsf4e65851.jpg) (http://s1112.photobucket.com/user/firko2/media/ChampionYamahasticker_zpsf4e65851.jpg.html)
This one's going to be blue and white Mark. Thanks for the offer anyway.
Pete.
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Blue / White still should have the Black / White BUMBLE BEE stripes Pete,
But I suppose since you went to this much effort,
you get to chose what colour it is !
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Yamaha Roadracer Callum Spriggs has a white R6 with the blue stripe with the black pinstripe
I think it needs the squares/rectangles to finish it off
Anyway Pete looking good
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Blue / White still should have the Black / White BUMBLE BEE stripes Pete,
But I suppose since you went to this much effort,
you get to chose what colour it is !
Couldn't agree more Graeme - if you look closely at the picture you'll see the bumble bee stripes pencilled in on the tank and seat ;)
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Looking Great, well done ;)
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Looking good Pete
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Bultaco Astro 1972, graphics and leathers design by Royal Sherbet and rider Mike Kidd to run AMA flattrack. Kenny Roberts 1975, Tz750 champion frame shadow block or strobe block graphics ( bumble bee)designed and painted by Mike Viss.
Who was first and who's telling porkies, looks pretty net though.
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Slight Hijack, what's the Royal Sherbert / Mike Kidd designing the Astro graphics on Royals kitchen table got to do with Pete's colours ?
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Bultaco flattracker graphics on a Yammy that's all.
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So Senior copied the Astro?
I have not heard this story!
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Bultaco Astro 1972, graphics and leathers design by Royal Sherbet and rider Mike Kidd to run AMA flattrack. Kenny Roberts 1975, Tz750 champion frame shadow block or strobe block graphics ( bumble bee)designed and painted by Mike Viss. The Bultaco and Yamaha designs share little in my opinion.
Who was first and who's telling porkies, looks pretty net though
With respect, the '72 Astro used standard Pursang graphics, I think the Sherbet/Kidd graphics came later on the the 74-79 Astro . Mike Viss may have painted the graphics on Kenny's Indy Mile TZ750 but the Yellow/bumble bee design had been in use long before that.
(http://i1112.photobucket.com/albums/k495/firko2/astro_25072_zps725a1e49.jpg) (http://s1112.photobucket.com/user/firko2/media/astro_25072_zps725a1e49.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/Bultaco20Astro20Modelo20123_zps38b7d478.jpg) (http://s1112.photobucket.com/user/firko2/media/Bultaco20Astro20Modelo20123_zps38b7d478.jpg.html)
(http://i1112.photobucket.com/albums/k495/firko2/AstroKidd_zpsb2545662.png) (http://s1112.photobucket.com/user/firko2/media/AstroKidd_zpsb2545662.png.html)
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Finished the baffle cones and mufflers and welded them all together. Just need to make the two mounting brackets and then start on the right hand side footrest and brake pedal.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01475_zps06dc0b56.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01475_zps06dc0b56.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01476_zpsa6635c2a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01476_zpsa6635c2a.jpg.html)
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Nice work!
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Finished the right hand side footrest bracket and rear brake pedal. The bracket also has the mount for the rhs exhaust.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01477_zps931b89c1.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01477_zps931b89c1.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01479_zpsbea32f20.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01479_zpsbea32f20.jpg.html)
It's now ready to be pulled to bits for the powder coating, painting and zinc plating. While that's going on the fork dampers can be shortened and a lug welded on for the brake backing plate and the engine can be rebuilt.
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looks good 8) you are doing a top job , I just finished a mates husky frame XR500 transplant 8) Lots of bits to make like you brake pedal foot peg brackets , tanks brackets etc etc a big list of jobs but worth it in the end , I would two pack frame instead of powder coat
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looks good 8) you are doing a top job , I just finished a mates husky frame XR500 transplant 8) Lots of bits to make like you brake pedal foot peg brackets , tanks brackets etc etc a big list of jobs but worth it in the end , I would two pack frame instead of powder coat
Yeah Mick, all those little brackets and bibs and bobs are what takes all the time, and there doesn't seem to be anything to show for the effort. I've just spent the last few hours making up the rear brake torque arm and mounting boss, including machining up a nyloil bush. Time cosuming, but has to be done. Luckily, all those little pieces are now finished, so it's plain sailing from here, I hope.
Won't be powdercoating the frame, just all the little brackets etc.
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Pete coming along well
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Looking good Pete :P
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The weather's no good for painting so the forks got the attention. Shortened 60mm, cut the old caliper bracket off, welded on the lug for the brake backing plate. stripped the black paint and buffed the forks and triple trees. New seals and oil - ready to go. Left the mudguard brackets there in case a fork brace is required.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01487_zpse2b94c98.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01487_zpse2b94c98.jpg.html)
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Got a bit of a break in the weather so the frame got painted. The conditions were not ideal but time is running out so it had to be done today
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01497_zps8083303b.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01497_zps8083303b.jpg.html)
In between coats the engine got stripped and I started to clean the cases up. Don't know what sort of chain lube the previous owner used but it took some getting off.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01500_zps1844729e.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01500_zps1844729e.jpg.html)
I'll start zinc plating the nuts and bolts tonight so the motor can go back together.
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;D ;D ;D ;D
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Got some of the frame loosely assembled last night.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01503_zps119dd56d.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01503_zps119dd56d.jpg.html)
Tonight the bottom end of the motor can go together and tomorrow afternoon I will start on the tank and seat. Already have the white base painted on, just need to let it dry thoroughly before the masking starts.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01504_zpsfedf8b3a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01504_zpsfedf8b3a.jpg.html)
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Got the tank and seat painted last night. Just need to make and apply the stickers and then apply a coat of clear. The blue is actually a lot darker than it looks in the photo - photography is certainly not a strong point for me. Not too sure if I like the design or not, have to see what it's like all together.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01511a_zps3e9eac08.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01511a_zps3e9eac08.jpg.html)
The bottom end of the engine is all assembled, just need to paint the heads and barrels and hone the bores and it can all go back together. Not too much going to happen for the rest of this week as we're off to NZ tomorrow for the first round of the SGP - can't wait.
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Your not mucking around Pete
Looking good
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Thats really looking good Yamaico, will we see this racing at nepean at some point?
Cheers
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Your not mucking around Pete
Looking good
Pressure's on Graeme, Broadford's only a little over two weeks away :P
Thats really looking good Yamaico, will we see this racing at nepean at some point?
Cheers
Thanks Brett. Will definately run it at Nepean, hopefully I can use Broadford to sort it out. It should work good at Nepean, I reckon.
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Charity meeting 25 lapper sounds like the go ;D ;)
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Charity meeting 25 lapper sounds like the go ;D ;)
Might have to train for that one Steve ;D
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You'll be right it only lasts for a bit under 15 minutes, ;)
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Whats this about the el cheepo challenge, i am trying to build a bike right now for sub $2k
2K is a positive kings ransom for Yamaico Pete. I think he's aiming to bring this in at $800 or less. The challenge involves the TM/TS250 Suzuki I built using the old mate network and skip bin parts and my stored away stash for $100 that we covered in a couple of early VMX editions. The bikes sat doing nothing since not long after it was completed so I'm very slowly converting it into a flat tracker to give to a mate who's doing it tough for Christmas this year. The same el Cheapo concept that I used to originally build the bike and that Pete has taken to new levels is being used. Once I get a bit further into it I'll post some progress shots. Below, the $100 TS250 powered TM250 that'll soon be a flat tracker.
(http://i1112.photobucket.com/albums/k495/firko2/DSCF0022.jpg) (http://s1112.photobucket.com/user/firko2/media/DSCF0022.jpg.html)
Hi Mate,
Wondering if you or anyone else can help me as I am after a TS/TM 250 clutch cover and actuator the same as the one in this photo?
Thanks in advance
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Hi Mate,
Wondering if you or anyone else can help me as I am after a TS/TM 250 clutch cover and actuator the same as the one in this photo?
Thanks in advance
I might have a spare one of those TM clutch side covers. Will check and get abck to you :)
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Hi Simo63,
Sounds unreal, Thankyou!
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Darren's right Pete, 15 min max and if you get lapped a few times like I did you're only doing 22 - 23 laps.
Doesn't sound as bad. :o
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Should be right on the RD for the whole 25, I rode an SL175 in pre75 last year and got 22 laps in and she wouldn't rev past 8000 ;)
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Should be right on the RD for the whole 25, I rode an SL175 in pre75 last year and got 22 laps in and she wouldn't rev past 8000 ;)
;D ;D ;D ;D
Got the engine assembled and most of the chassis together but finding it hard to get enough sunshine to put some clear on the tank and seat. Might have to use a mates booth to get it done. Aside from that just the carbies, chain, cables etc. to go.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01512a_zpsed13a593.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01512a_zpsed13a593.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01514a_zps9d274cb7.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01514a_zps9d274cb7.jpg.html)
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As usual you're putting the rest of us to shame Pete, looking real good.
Hey Darren, do SL175's ever rev to 8,000? :o
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Year Steve its got 10500 redline but for one or two laps there must have been a bit of tailwind on the back straight and it actually got to 8!
Damn that RDs lookin Gooood.
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Got the pipe mounting brackets finished and gave the pipes a coat of "pot belly black",
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01515a_zps05c7972b.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01515a_zps05c7972b.jpg.html)
Also finished the stickers made up and then got the tank and seat cleared.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01522a_zpsb53a58c0.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01522a_zpsb53a58c0.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01521a_zps86005486.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01521a_zps86005486.jpg.html)
Just need to make a couple of reed spacer blocks, overhaul the carbies and put everything together and then give it a run.
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Looking great. :)
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Great job ;)
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Finally got it together, but waiting on the air filters to arrive before I can fire it up. Still need to make the chain guide, stand bracket and stand and double pole kill switch for the PVL ignition, but all the hard work is finished. :-\
The motor is pretty much stock aside from the pipes, squish clearance, compression, carbie jetting and ignition. I made spacers for the reed blocks to move them back to unshroud the boost port, but the rest of the porting is factory. I'll see how it goes and then decide which way to head.
RD400's have closer ratio 4th, 5th and 6th gears so I'll look around for a used gearset.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01524a_zpsa8941450.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01524a_zpsa8941450.jpg.html)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01526a_zpsd5c290e9.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01526a_zpsd5c290e9.jpg.html)
I think it will be an interesting bike to ride........
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beautiful
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Pete, it's a credit to you and your skills how this RD tracker has turned out. Just goes to prove what you can produce for very little money if your prepared to have a go yourself. Hope to catch up at Broadford and have a look at it in the flesh.
Regards Greg.
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Thanks Greg. Unfortunately Broadford's not looking too good as I was going down with Firko and Jonesy. :(
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If Broadfords out what about some track time at Barleigh Ranch?
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What can one say Pete , That is art . well done she looks amazing . Iain ;D ;D ;D
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I got the kill switch made up which was a pain because it has to be double pole so that the two coils aren't shorted together under normal running conditions. I ended up getting a pit bike switch, pulling the guts out of it and fitting up a miniature double pole momentary pushbutton from Jaycar, which works fine.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01551a_zpscd047c4a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01551a_zpscd047c4a.jpg.html)
Also got the sidestand finished. Made up a little aluminium bracket that bolts onto the old left rear footrest bracket, which I left on for that purpose. (The right hand bracket was used for the footrest and brake pedal bracket.)
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01548a_zpsc0d89e56.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01548a_zpsc0d89e56.jpg.html)
My photography is very poor, but this shot shows almost the right shade of blue that the bike actually is. It's a match for my Yamaico, on Firko's suggestion, and looks pretty good in the flesh.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01543a_zps8a781aa2.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01543a_zps8a781aa2.jpg.html)
I got the little short uni filters yesterday, so I fired it up. No kickstarter any more so I bumped it down the street and it fired as soon as the wheel turned over (maybe that PVL was a worthwhile purchase). A good warm-up and then a few twists of the throttle responded in a wail that sounded like a GP bike. Time for a run down the street. Holeee shit, what a weapon. Went through the first four gears, not even giving it a hard rev and it's pawing the air and trying to throw me off the back. To quote words made famous by King Kenny Roberts after riding the Kel Carruthers prepared TZ750 at the Indy Mile, "they don't pay me enough to ride this thing" ;D ;D
I'll take it up to Gloucester for the grass track, but I'm thinking I'll probably end up riding the CD YTX400 :-\
A bit of fine tuning on the mixture and she's good to go. Thanks to everyone for all the positive comments. This bike has been a lot of fun to build, but taken a bit longer than expected. The final cost was just under $1500, with most of the blowout being a result of nearly $500 worth of PVL ignition :-\
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nice work Pete.
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Well done, hey where did ya get the Magura levers from?
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two pole kill switch. had the same problem with an xs 650 so i put a single diode on one off the coils wire, it worked and ran a normal kill switch. don`t know if this would help you. anyhow i enjoy reading the progress of the bike. credit to you
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nice work Pete.
Thanks Mike.
Well done, hey where did ya get the Magura levers from?
Thanks Shelpi, the Magura levers come from "Weekend Warriors" on ebay. The guy is Mark Thompson, who is a vintage enthusiast. The levers are around $70 delivered - good value in my book. If you get some that you want to use on a Jap bike make sure you request the large ID adjusters.
two pole kill switch. had the same problem with an xs 650 so i put a single diode on one off the coils wire, it worked and ran a normal kill switch. don`t know if this would help you. anyhow i enjoy reading the progress of the bike. credit to you
Thanks for the suggestion Micks. The issue for me is that the RD ignition is AC whereas your 650 would be DC, so a single diode wouldn't work for me.
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THAT!!........ is bloody fantastic. You should be proud. I love it!
regards Mark
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Flucking genius my friend. We finally found a bike that the Knight tank suited. I had it on two bikes and I think Jonesy tried it on three. It's absolutely spot on on the RD. I hope I can get to Gloucester and maybe bring the little 360 short tracker and possibly the Cheney. Of course it's all down to what happens with mum.
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Gloucester entry forms here guys don't forget the free entry for Pre65 and/or Pre70 only entries.
http://www.heavenvmx.com.au/2014-vmx-rnd-3-gloucester/
The RD looks fantastic by the way. Wonderful vision and execution can not wait to see it in the flesh. It just looks as if it rolled out of a factory race shop 8) 8)
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Nice build, pipes aren't to fat which is a trap with Yamaha parralel twins, RD cranks are bulletproof so don't be afraid to rev it.
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Wow that is one nice looking bike!
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Bloody beauty !!!!!!!!!!!!! :) Cheers
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its simply a work of art
brett
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THAT!!........ is bloody fantastic. You should be proud. I love it!
regards Mark
Thanks Mark, can't wait to give it a spin.
Flucking genius my friend. We finally found a bike that the Knight tank suited. I had it on two bikes and I think Jonesy tried it on three. It's absolutely spot on on the RD. I hope I can get to Gloucester and maybe bring the little 360 short tracker and possibly the Cheney. Of course it's all down to what happens with mum.
Hope you can make it to Gloucester too Mark.
It's funny, but the tank looks sort of big in photos, but not in the flesh. I put the big stripes on to try and detract from that, not sure it worked though. All the best to Mum.
Gloucester entry forms here guys don't forget the free entry for Pre65 and/or Pre70 only entries.
http://www.heavenvmx.com.au/2014-vmx-rnd-3-gloucester/
The RD looks fantastic by the way. Wonderful vision and execution can not wait to see it in the flesh. It just looks as if it rolled out of a factory race shop 8) 8)
Thanks Heaven, got my entry filled out, just waiting for the CFO to do the fund transfer.
Nice build, pipes aren't to fat which is a trap with Yamaha parralel twins, RD cranks are bulletproof so don't be afraid to rev it.
Yeah Lozza, I wanted the old school look with pipes and fortunately, using Bell's formulae, the belly ended up at 90mm as a result of the small exhaust port exit diameter on the RD. I was sort of glad it worked out that way as fitting the pipes both out the right hand side was a bit of a squeeze, even at 90mm. I'm looking forward to giving it a good rev, but it feels just a tad lean at the moment so I'll get that sorted first. It certainly sounds like it wants to go 8)
Thanks Paul, Tim and Brett.
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That is really nice, Pete ! a classic piece of Aussie ingenuity, bloody looks terrific, I'd love to hear it on full song.
Foss
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Thanks Al. I reckon on full song it will be sort of reminiscent of KP's twins - very distinct sound,
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Very nice job Pete. You've obviously got some serious skills and imagination. BEWDIFUL.......
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That's cool.
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Excellence!
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Hey thanks Mark, Davey and Pancho. You'll need to have a skid on it Wal ;D Got you lined up too Steve (Sliderulz) ;D You'll get all inspired to get that T20 going then..
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I could count the Yamahas that turn my head on one hand...... That's one of them.
It screams "I dare you!". Bloody nice bike. Well done on the build.
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There was a video on here a while back. I think it was from Catalina Island, featuring a YDS2 stripped down to essentials in some sort of off road event. It really grabbed my attention 'cos I had one as a ride to work model. It looked like fun.
cheers pancho.
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I think you've excelled yourself on this one Pete and I'll happily accept your offer of a test ride one day.
As for my T20 project, it's a goner because if I do eventually decide to make comeback #3 I'm gunna concentrate on Pre65 and Slider classes but my number one priority this year is to get both my personal life and residential location in order first, both have been total shite for way too long.
Again, job well done, Steve.
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I could count the Yamahas that turn my head on one hand...... That's one of them.
It screams "I dare you!". Bloody nice bike. Well done on the build.
Thanks Pokey. "I dare you" is OK, "I want to hurt you" is not ;D
There was a video on here a while back. I think it was from Catalina Island, featuring a YDS2 stripped down to essentials in some sort of off road event. It really grabbed my attention 'cos I had one as a ride to work model. It looked like fun.
cheers pancho.
This one Wal? - http://www.youtube.com/watch?v=gmCMcLTpvx4
I think you've excelled yourself on this one Pete and I'll happily accept your offer of a test ride one day.
As for my T20 project, it's a goner because if I do eventually decide to make comeback #3 I'm gunna concentrate on Pre65 and Slider classes but my number one priority this year is to get both my personal life and residential location in order first, both have been total shite for way too long.
Again, job well done, Steve.
It's all about priorities Steve, good luck with it.
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What can I say Pete. You are the man that is so cool 8) some people are good at one or two things but not you. You even seem to have a eye for that hard to find balance that makes a bike worth looking at. Well done mate. Jimson
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What can I say Pete. You are the man that is so cool 8) some people are good at one or two things but not you. You even seem to have a eye for that hard to find balance that makes a bike worth looking at. Well done mate. Jimson
Thanks Garry, You do some pretty good work yourself mate. Can't wait to see that desert sled in action.
I'm not too happy with the length of the filters but I didn't give them any thought when I was doing the frame mods :-[, but there's plenty of room under the seat so I think I'll make an air box up with the inlet Y piece threading between the frame tubes - luckily I have a couple of brackets back there that I didn't remove. I just need to find a couple of 44mm straight rubbers to connect to the carbs.
(http://i1258.photobucket.com/albums/ii534/yamaico/DSC01541b_zps32213b7a.jpg) (http://s1258.photobucket.com/user/yamaico/media/DSC01541b_zps32213b7a.jpg.html)
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There's always something that needs a tweak after building a special Pete :o
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Hi I have followed this build since the start. Most rebuilds are just rebuild, repaint, replate and polish but this build is certainly a big leap up in the process! Manufacturing your own parts! Really great looking bike. Im dying to hear it,please put up a video revving its head off when you can! I have to ask what trade do you have? and please tell me your steps when polishing?because mine is never as good as yours is. Thanks.
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For the rubbers you could go to a plumbing store or even a hardware and get a couple of 40mm plumb quicks they are just a straight rubber with two hose clamps either end the od of 40mm pipe is like 43mm so they would fit easy.
Airbox is always better in my opinion I'm sure you will make a nice one for it the bike looks great, thanks Michael.
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Pick of the day as far as I am concerned 8)
(http://i677.photobucket.com/albums/vv132/mc125mick/d6ef45c7-0475-4273-9ee4-c5da917074d0_zpsbc5ecd50.jpg~original)
It makes the Mona Lisa look plumb fugly ;D
Should squeal out a nasty induction Howl 8)
Let us know when it will be at Nepean or where ever Pete, I will come for a run, and bring a bike, join up and have a putt around as well.
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I'm keen to watch the step by step process for the airbox! I need some inspiration for my RT1.
cheers pancho.
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There's always something that needs a tweak after building a special Pete :o
I'm sure you would have the same thing on your cool XL special Mark. It's hard to envisage everything.
Hi I have followed this build since the start. Most rebuilds are just rebuild, repaint, replate and polish but this build is certainly a big leap up in the process! Manufacturing your own parts! Really great looking bike. Im dying to hear it,please put up a video revving its head off when you can! I have to ask what trade do you have? and please tell me your steps when polishing?because mine is never as good as yours is. Thanks.
Hey Kenny, thanks mate. I'll try post up a short video of it singing. I am an electrical engineer by trade, but have been fiddling in the workshop for many years. As far as the polishing goes, I just use buffing wheels on an old bench grinder after prepping with #400, #800, #1200 and #1600 wet and dry paper. The covers on the RD look a lot better in the photos than they do in real life as they had a lot of corrosion under the original black paint, which is still showing through. I didn't spend as much time as I should have on them due to time constraints, but I will take them off and do a better job after the Gloucester meeting.
For the rubbers you could go to a plumbing store or even a hardware and get a couple of 40mm plumb quicks they are just a straight rubber with two hose clamps either end the od of 40mm pipe is like 43mm so they would fit easy.
Airbox is always better in my opinion I'm sure you will make a nice one for it the bike looks great, thanks Michael.
Michael, you're a genius, I'll hit the local hardware shop tomorrow. Great idea, thanks mate.
Pick of the day as far as I am concerned 8)
It makes the Mona Lisa look plumb fugly ;D
Should squeal out a nasty induction Howl 8)
Let us know when it will be at Nepean or where ever Pete, I will come for a run, and bring a bike, join up and have a putt around as well.
Da Vinci may disagree with you Mick ;D We should organise a practice day at Nepean in the near future and get everyone together.
I'm keen to watch the step by step process for the airbox! I need some inspiration for my RT1.
cheers pancho.
Can't you use the standard airbox on the RT Pancho? I might have one kicking around if you don't have one.
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Pool shop for those flexible couplings. Part# ffc40
Available in 2"x2" 2"x1 1/2" 1 1/2"x 1 1/2" 1 1/4"x1 1/4"
They are mainly used on pool filters or pumps. Make sure you grab some clamps to suit.
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Pete .... you have great vision and skills that I can only admire. Most of my projects take at least 1 to 2 years ;D
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What sort of buff wheel do you use Pete? And do you use the white or brown polish stick when you polish? Thanks
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And is 10 000 views a record?
anyone know?
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Pete .... you have great vision and skills that I can only admire. Most of my projects take at least 10 to 200 years, than just decompose in a stinky fetid pile. Tim754
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Hi yamaico, I just assumed I'd never find an airbox for my old RT1 as '79 was a fair while ago, I would certainly like one.!
cheers pancho.
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There's always something that needs a tweak after building a special Pete :o
I'm sure you would have the same thing on your cool XL special Mark. It's hard to envisage everything.
I sure did Pete.....and it was the air box! After 2 failed attempts at making an alloy box that fit nice, I abandoned the idea and dug out a 79 PE250 airbox that came close to fitting and got to work cutting and plastic welding. 2 days later I had the airbox, filter cage and carb all working in harmony ;D
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Pool shop for those flexible couplings. Part# ffc40
Available in 2"x2" 2"x1 1/2" 1 1/2"x 1 1/2" 1 1/4"x1 1/4"
They are mainly used on pool filters or pumps. Make sure you grab some clamps to suit.
Thanks very much Pokey - I'll check them out.
What sort of buff wheel do you use Pete? And do you use the white or brown polish stick when you polish? Thanks
Kenny, I've had the buffing wheel that long I can't remember what make it is, but it's the sewn together one, not the loose flap type. I used to use the white compound but I got some light blue stuff when I was working in Vietnam earlier in the year and it works pretty good.
Pete .... you have great vision and skills that I can only admire. Most of my projects take at least 1 to 2 years ;D
Pete .... you have great vision and skills that I can only admire. Most of my projects take at least 10 to 200 years, than just decompose in a stinky fetid pile. Tim754
You guys will have to speed it up a bit, particularly you Tim ;D
Thanks both for the comments.
Hi yamaico, I just assumed I'd never find an airbox for my old RT1 as '79 was a fair while ago, I would certainly like one.!
cheers pancho.
I'll have a look and see what I can find Pancho.
I sure did Pete.....and it was the air box! After 2 failed attempts at making an alloy box that fit nice, I abandoned the idea and dug out a 79 PE250 airbox that came close to fitting and got to work cutting and plastic welding. 2 days later I had the airbox, filter cage and carb all working in harmony ;D
Yes Mark, the dreaded airbox, got us both ;D
I took a little video this afternoon of the bike running. Not too much of a rev as it's unloaded and the motor is still fresh, but you'll get the idea. I haven't posted a video before so I hope it comes out.
http://s1258.photobucket.com/albums/ii534/yamaico/M4H01558_zps297fc36b.mp4.html
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Sounds pretty good Pete.
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Sounds like it will do the business Pete.....Loved watching the footpeg trying to vibrate it's way to the ground, just like an old 2 smoker!
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Saw it in the carpark at Nepean on Saturday. Did it get a run? Looks even better in the flesh!
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Saw it in the carpark at Nepean on Saturday. Did it get a run? Looks even better in the flesh!
Unfortunately I didn't get back from overseas until last weekend and didn't have time to prepare. I took it up because Andy Baker wanted to shoot a few photos but poor old Andy got a bit crook on Saturday and had a trip to the local hospital. I talked to him on email today and luckily it was only a bit of a warning and he is OK, which is great news.
The plan is to give it a run at Bankstown this weekend in preparation for Bathurst Long Track later in the year.
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Pete whats going at Bankstown?
Any other Twins going?
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Not too sure who's going Graeme. It's an invitation only practice day but that's about all I know.
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Sssh!
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Saw it at Nepean Charity on show, That bike looks even better in real life!
Brett