OzVMX Forum

Clubroom => General Discussion => Topic started by: Graeme M on April 18, 2008, 07:00:50 am

Title: Leftovers, Spares and Bitzas Bikes...
Post by: Graeme M on April 18, 2008, 07:00:50 am
Here's a thought. What examples of Aussie ingenuity do we have out there when it comes to making something of all the bits and pieces you've got lying around or found? Here's Tim754's version to start us off.

"This is a little SL70 bike I am constructing of leftovers and spare, spare parts. Basically an SL70 frame swing arm and rear wheel. SL125 frontend ,triple clamps cut and shut to fit , CT90 front wheel and rear shocks, Exhaust by scrap pile,  paint work seat cover and swing arm chain block doing now. Straight bolt in power by new Lifan 138cc that was taken as payment for some repairs I did, yep is ample go power.... and special stand extension ala VMX magazine..........."
 
(http://www.ozvmx.com/images/forum/sl70a.jpg)

(http://www.ozvmx.com/images/forum/sl70b.jpg)

(http://www.ozvmx.com/images/forum/sl70c.jpg)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Quicksilver on April 18, 2008, 07:12:02 am
Here my attempt.
Made from junk and leftovers. Built using parts from  1977 XR75, XR100, XL75, SL175 twin, XL185S, KE100, Paint was also mixed from leftovers. Even the tyres are used from other bike. Only new parts were cables, seat cover, and maier plasitcs. Total investment in cash just under $300.

(http://i266.photobucket.com/albums/ii279/Quicksilver_032/DSC01419.jpg)


(http://i266.photobucket.com/albums/ii279/Quicksilver_032/DSC01422.jpg)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: brent j on April 18, 2008, 12:09:50 pm
Apart from my wife's CRF230 (which I am NOT allowed to touch) this sounds like all of my bikes ;)

Brent
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Colin Jay on April 18, 2008, 01:28:24 pm
Hi,

Here are picture of two bike that I have built up from bit.

The XT500 has been built from bits that have been collected over the last 10 years or so. Had problems getting registered, as when the police officer (you can do your rego throught the police in country SA) asked who I bought it from I replied with "what particular part"? When I explained that I had built it out of parts bought from swap meets, wreckers, friends and ebay he wouldn't register it. I took it to Regency Park (SA's main inspection station) and after explaining that all the bits, except the seat cover, hand grips, tyres, chain and sprokets were genuine Yamaha XT500 parts the inspector had no problems and passed it.  The plan is to do a full resto on this bike later in the year.

(http://i150.photobucket.com/albums/s120/coljay/XT5002-1-08800.jpg)


This is my Aberg replica.  I originally built this bike in 1980, using the rolling chassis of my '78 Husky 390 AMX (do I hear crys of sacrelige) and the engine from my 78 SR500 Yamaha.  I used to take the engine out of the SR on friday race the bike an the weekend and refit the engine back in the SR frame on Monday if I hadn't blown it up. I rode it in C grade MX and some enduros until about 1984. The bike was pulled down and stored in boxes until I reassembled it for CD2.  It currently has Yamaha IT front forks and one of my spare TT engines in it.  The bike won the award for Best Bitsa at last year's XT/TT 500 muster. I obtained another Husky frame last year, so I can build it up on the "new" frame and then rebuild the 390 AMX using it correct frame (one day when money allows).

(http://i150.photobucket.com/albums/s120/coljay/Aberg.jpg)

CJ
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Noel on April 18, 2008, 06:49:55 pm
I'll throw a picture up tomorrow, ,
the Evo 125 I race at the moment probably fits the bill,
It was left in my garage by son who move out as a  1978 IT 175 frame with a '74 TY175 motor in ti bent forks that would not move
etc,
It now has IT 175 frame, DT175 gearbox with 1981 IT 125 barrel and head, YZ piston , dt175 exhaust cut open debaffled,
and modified to come up the left hand side of the engine, home made  stinger and silencer,
DT rear wheel and brakes, TS185 front wheel and brakes, YZ125 E forks, XT250 rear shock,don't know what the carby is off, tyres came from a wreck at the tip, side covers from some sheets of plastic fround on throw out pile.

Lots of this bike came from things Nathan discarded :o ::)

cheers
Noel
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: GD66 on April 18, 2008, 08:54:51 pm
 Doc must've gone into a frothing, gibbering wreck by now. Carn Doc, spill your guts mate. You know you wanna.... :D
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Tim754 on April 18, 2008, 10:16:15 pm
Come everyone show us your parts bin guilty secrets, they may not please all the purists but bet they please you! Firko does the el cheapo Suzuki still breathe life? ... Colj500 nice collection but good grief somebody has put a bloody car in ya bike shed!! >:(
 Doc off  ya go ;)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: brent j on April 18, 2008, 11:28:58 pm
Honds XR200 in a KTM frame, pretty well built from parts laying around

Brent

(http://img.villagephotos.com/p/2008-1/1296303/ktm004.jpgcomp.jpg)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: firko on April 18, 2008, 11:45:59 pm
Tim the el cheapo Suzuki still lives and I hoped to take it to CD5 but I'm taking 4 bikes as it is and I don't have any room for any more in the trailer so the Suzuki stays in the garden shed.
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Doc on April 19, 2008, 08:01:29 am
 :D jeez..I'm at a loss..not many of my bikes aren't bitza's!  ::)

I think my best is yet to come but not till late in the year or maybe next. A mix of TM125 and about 42 reliable little ponies ;D
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: caps 999 on April 19, 2008, 08:19:02 am
heres mine its built out of z50 bits from bits from around several wreckers and a chinese power plant still needs work ie paint and finishing it still has some problems tho needs a new seat rusted and the tank leaks like a siv ive patched the holes silver solider but i will be replacing it
(http://i187.photobucket.com/albums/x197/caps999/28032008066.jpg)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Noel on April 19, 2008, 10:34:07 am
(http://i77.photobucket.com/albums/j41/Tento850/DSCF3151.jpg)
(http://i77.photobucket.com/albums/j41/Tento850/DSCF3154.jpg)
pictures of bike as described earlier,
cheers
Noel
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Quicksilver on April 19, 2008, 04:48:20 pm
This tread rocks... ;D Keep em coming boys.
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Colin Jay on April 21, 2008, 08:31:31 am
Tim,

The car is a 1965 Honda S600. It justifies it's place in the bike collection through having a 600cc engine with 4 carbies and having chain final drive.

CJ
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: jimg1au on April 21, 2008, 09:57:19 am
colj500
we had two of those hondas in the 70s a mint hardtop and a damaged soft top.dad and me cut the softtop up and it went to meani tip.had the s600 hardtop for a while but i preferred to drive the studebaker v8 not the very high reving honda.it was in 1975 my first car.
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: asasin on September 17, 2011, 07:43:54 am
I have brought back this thread to see who else runs true Bitza bikes in competition. are there alot or not?
My bitza is as follows. Cooper frame rear end modified to maico specs shock position etc. Yss shocks YZ250 motor Suzuki 125 rear hub. Suzuki 250 frunt hub ( I have thought about a T500 hub ;D) ,Husky tank, TM guards, cooper side covers , gripper seat ,high rise handle bar mounts , DRz foot pegs , beta forks revalved and lenghtened. Bitza pipe ( 3 different bikes).
This is for our classic class in NZ.
 It handles really well and stops good , I like the moter power  but cant stop the blooby motor from detonationg. in the mid range.
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: JC on September 17, 2011, 08:55:57 am
Got a pic of it?  Love to see it
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: firko on September 17, 2011, 10:27:42 am
Wow, my kind of bike! Let's see a photo of that Cooper thingy.
I've built a whole bunch of bitzas over the years, some horribly unsuccesful like the XL Honda powered Montesa King Scorpion or the Triumph powered M11 Bultaco, and some extremely successful like my current batch of custom framed Yamahas and my DT1 from Hell.

The DT1 started life as a pile of unrelated parts and was built on a challenge to build a competitive DT1 racer from my mate Geoff Eldridge. The heart of the bike is the frame which started life as under an RT1. Initially I started with the usual 2'' lowering of the subframe but early in the piece a friend donated a badly rusted and weather worn OSSA Stilleto roller that I soon noticed was of similar frame design to the Yamaha. Before long I'd cut the OSSA frame in half and grafted the front section to the Yamaha frame. The frame is OSSA from the front engine mounts up, including the steering head to the top rail under the tank. By a stroke of luck the OSSA top rail inside diameter was the same as the Yamaha outside diameter so the OSSA graft slipped over the Yamaha rail like a sock over a cock. It was then noticed that the rake was too far out, a bit like a chopper so I used the well respected old boilermaker raking technique of heating the frame top rail immediately behind the steering head to a cherry red colour and rolling the bike with considerable gusto into a brick wall until the rake looked 'about right'. I then gusseted the area to prevent any further involuntary rake change! The first series DT1 'square' swingarm was lengthened 2".

To simplify the build I used the OSSA tapered roller steering bearings, triple clamps and Betor forks to which I fitted OSSA Phantom dampeners and Ceriani springs. The one mistake I made at the front of the bike was to use the absolutely awful and heavy OSSA front wheel because it looked cool and had shiny S/S spokes and a nice Akront mudcatcher rim. I tried everything to get that bloody OSSA brake to stop..all to no avail. The tank and seat are stock DT1 and the front mudguard is a genuine Yamaha GYT high mount alloy guard, the rear a fibreglass replica of a stock DT1 'guard I'd bought at a swapmeet. The side panels are from a '75 Maico, painted candy apple tangerine to match the stock '69 tank colour. Rear shocks varied between alloy Konis or Boge-Mulhollands. The rear wheel was originally from an MX250 but I later went over to one from a Mk8 Bultaco Pursang. Despite it probably being ilegal, nobody ever protested it. The engine is where the bike excelled, the cases are early series DT1 fitted with YZ250A gears, DT2MX crank and clutch and DT400 CDI ignition. The cylinder was donated to the cause by this forums Yamaico Pete who informed me years later it'd been ported by road race legend Warren Willing. The GYT head was revamped to YZ250A specs by 'Professor Pete' Reynolds, a porting guru who now builds amps for rock bands. The carby is a 34mm Amal taken straight from a Weslake speedway bike using the stock Weslake settings and jetting. It was planned to alter the jetting to suit later on but it worked perfectly on methanol right out of the box and the carby never had the bowl off after the first ride.

Initially I used a GYT pipe fitted with a Supertrapp muffler but as we developed the bike "Professor Pete' built a sweet 'low-boy' fatty up pipe that crossed over the top of the engine into a muffler made by yours truly. Looking back, the pipe is what really produced the horses from the bike but in today's stricter rule environment it'd probably be considered politically incorrect....sort of like a pre '70 version of Diamond Lil, for those who are aware of that bike.

The bike performed extremely well, far better that the original expectations, often winning the pre 70 class on both motocross and dirt track with various riders including myself. Kevin Flood rode the bike to two runner up Nationals spots behind Boagies CZ in an era of two complete grids of pre 70 bikes when the top riders competed in the class. After a nasty crash caused by a stuck throttle at Pacific Park in which I ended up with a broken elbow, broken sternum, two broken ribs and other cuts and bruises I rarely raced the bike until I took it out for its last blast at the final Condo meeting in 1999. It now rests partially dismantled in the garden shed awaiting a comeback one day. That wonderful engine is to be utilised in my upcoming Hindall DT1 special however, only this time out with a 36mm Mikuni and Avgas.

Looking back without the rose coloured glasses, the bike was in reality an over powered heavy pig of a thing that tried to kill nearly everyone who rode it (and nearly succeeded on a couple of occasions, hence the name, christened by the late Tony Kirby). However the bike packed a very high cool factor and despite its high state of modification it still looked like a fairly standard DT1....the main aim of the exercise. Prior to building this bike I had little interest in DT1 Yamahas other than an admiration of their place in our sports history but owning this bike changed all that. Today, I've got a mini DT1 fetish thing happening with a restored '68 stocker and four DT1/RT1 based specials languishing in various states of build. I truly believe that a DT1 or RT1 is the cheapest way of building a truly competitive pre '70 class bike. The DT1 is the 55 Chevy of the motocross world.....infinitely hot roddable and way cool.
 (http://img.villagephotos.com/p/2005-8/1062154/dt1fhfirk2.jpg)
(http://img.villagephotos.com/p/2005-8/1062154/dt1fhfirk3.jpg)
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: Tim754 on September 17, 2011, 11:06:04 am
"the bike was in reality an over powered heavy pig of a thing that tried to kill nearly everyone who rode it.." So you have had a VMX sidecar too Firko :D
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: asasin on September 17, 2011, 11:44:21 am
Will post a pic when I get the tank signwritten,
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: pancho on September 17, 2011, 06:46:30 pm
 In the old 'good old days as opposed to the now good old days, just about everything was a hybrid, however the one I shall refer to is the 'transport' machine required to get me to work from Mulgoa to Clyde every day.
 As the four wheeled mode of transport was a seriously heavily used Austin A50 that leaked so much oil out the rear main that the clutch slipped I need to find/build something else and leave the A50 at home for necessary local trips by my better half...so having recently put my B33 engine into a slider frame, I had the duplex Beeza frame, plus various spare bits.
 So, dirt bike frame, little seat little home made tank, [a bit small] 350 flywheels & clutch, 500 barrel & head scrounged a headlamp and tail lamp, an old magdyno I had, nobbly tyre on the front and a grasshopper on the back [very popular tyre in those days] and up to the rego office. Bingo! a ride to work machine.The clutch slipped if I gave it a handful but for 6 months into a new house scraping and scrimping it filled the bill!
 cheers pancho.
Title: Re: Leftovers, Spares and Bitzas Bikes...
Post by: firko on September 18, 2011, 04:49:33 pm
The TM/TS VMX magazine project bike.
This bike was inspired by a particular annoying bloke who continually waffled on about how expensive it was to build a race bike. I spoke with Ray Ryan about this and we decided to go with building a bike using left over, scrounged and donated parts using a particularly ugly '75 TS 250 Suzuki with a broken frame that a mate donated to the project. I'd previously found two TM 250 Suzuki frames in a skip bin so using the best of those frames I rubbed it back by hand and sprayed it with a couple of $2 rattle cans of gloss black. The TS engine was in surprisingly good order having being rebuilt a couple of years earlier so it was given a quick rattle can spray job and fitted to the TM frame. I wanted a pseudo RH look so a pair of RM125 side covers were painted and fitted. Dave Tanner donated a genuine opaque RH rear 'guard and John Glendenning donated a matching opaque Preston Petty Tony D that had started life on one of Gally's Yamahas.I cut the 'wings' from the leading dide edgres of the 'guard to help the 'guard fit the lines of the bike more smoothly. I fitted new seals to the skip bin TM forks and after a quick squirt of thwe ubiquitous rattle can black they and the matching triple clamps were fitted. I found a couple of usable tyres in the skip bin at Penrith wreckers so they went on to the original TS rear wheel and a TM 250 front wheel I had in the stash. I fitted a pair of Inter-Am gold anodized solid alloy bars, the levers and cables from the donor TS and a Taiwanese Gunnar Gasser copy throttle. A pair of $5 bargain bin grips rounded out the controls. I fitted a pair of Curnutt shocks that had once been on my AW Maico.

A mate donated the unknown brand plastic tank that'd lived on his TY Yamaha. It took me a week to meticulously remove the white enamel paint to uncover the original yellow plastic. Mal Sargent in NZ donated a set of TM tank graphics. The seat that came with the skip bin TM had a good cover but a rusty base and the other a good base but crap cover. It was a no dollar, no brainer to combine the good top with the good bottom for a perfect seat.

At this stage the bike was pretty complete and had only cost about $100 total. We still needed a decent carby and an expansion chamber so my mate Stan loaned me a ratty TM pipe and my parts stash unearthed a 34mm Mikuni that had once lived on one of my Maicos. I then decided to splurge $50 on a mildly ported TM250L cylinder, head and piston from a mate of a mate and the bike was fired up and ridden at our farm for an outlay of about $150. The bike wasn't a world beater but it would have made a perfectly adequate race bike. In the end the borrowed pipe self destructed so I bit the bullet and bought a brand new Circle F pipe from the USA bringing the total to around $500 give or take a few dollars. The bike was ridden occasionally but because I've got better race tackle it remained in my shed for the last few years until a couple of weeks ago when I pulled it out to check her out. I'd ratted a few parts for my TM400 build and the poor old thing was looking pretty neglected until I got a major brain storm that'll see the old project bike back in the limelight.
                      (http://img.villagephotos.com/p/2005-8/1062154/suz.jpg)


With Bankstown-Wylie Park Club about to kick off American style short track at Nepean on the speedway track, we've decided to convert the old TM into a cheap but trick flat tracker. Yamaico Pete and I will be doing the build as a co-production with the finished result to be used by one of our Klub Kevlar mates who doesn't currently own a dirt track bike. Seeing that he was the person who originally donated the TS donor bike 10 years ago, it's kind of ironic that the bike will complete the full circle and go back to him. Of course it'll be a kind of courtesy bike for anyone who wants to try the new kind of racing without having to buy a bike. The serialised build will kick off on the forum after Pete returns from Indonesia and completes his current online el-Cheapo project. Stay tuned.