OzVMX Forum

Clubroom => Vintage Track => Topic started by: firko on November 30, 2011, 04:36:23 pm

Title: Firko's new flat tracker
Post by: firko on November 30, 2011, 04:36:23 pm
I picked up my new/old USA import flat tracker yesterday and to say I'm delighted would be an understatement. I bought it off eBay as a Champion but I was pretty certain it wasn't. Now it's here I can pretty much rule out it being a Champion but the workmanship and construction are even better than Doug Schwerma's Champion gear, and he was one of the best. There are a lot of Champion style touches but other things point towards Lyn (Redline) Kasten's work. The engine mounts are beautifully gusseted for instance, something not on either of my Champions. The frame is chrome plated instead of the usual nickel and in pretty good nick, it'll polish up beautifully. The forks are DT2 Yamaha, the rear wheel is an 18" DT2MX/MX250 Yamaha with a great Carlisle dirt track tyre, the front is a funky looking spool hub/alloy rim 19 incher with a 400x19 Pirelli MT53 dirt track tyre. Both tyres are in perfect nick, supple and with no cracks, the front Pirelli still has the tits even. The engine is supposedly a ported GYT DT1MX engine but I have no way of knowing for sure until I pull it down.  It's got the GYT head at least. I'm planning on using my 'DT1 from Hell' methanol engine with my Henderson head, 36mm Amal MK2 and a pipe by Yamaico Pete so whatever's done to the motor, it'll be a bonus for whatever I put it in.

I tried one of my seat bases and it fitted perfectly as shown in the photo so it'll probably be the one used. The tank I got with it is a Champion that's been extended at the rear so it'll be replaced by one of my two other Champion tanks currently being ethanol proofed by Matcho Mick. I'm hoping to have it done in time for the Bonanza even though I won't be able to ride it as I'll still be in plaster or a support boot after my operation on January 19. I'll have some friends including Tony Clarke sort it and the Hindall 360 dirt tracker for the Canberra Nats later in the year.
            (http://i1112.photobucket.com/albums/k495/firko2/IMG_6120.jpg)
            (http://i1112.photobucket.com/albums/k495/firko2/IMG_6138.jpg)
            (http://i1112.photobucket.com/albums/k495/firko2/IMG_6113.jpg)
            (http://i1112.photobucket.com/albums/k495/firko2/IMG_6115.jpg)
            (http://i1112.photobucket.com/albums/k495/firko2/IMG_6114.jpg)
Title: Re: Firko's new flat tracker
Post by: TeeBone on November 30, 2011, 04:39:29 pm
Nice pickup, Firko!
Title: Re: Firko's new flat tracker
Post by: HuskyPete on November 30, 2011, 04:43:36 pm
Very nice Mark
Title: Re: Firko's new flat tracker
Post by: jimg1au on November 30, 2011, 04:46:27 pm
hay firko
fasttrack frames out of new mexico were chrome plated mine is and also the 1 at dan rouits
Title: Re: Firko's new flat tracker
Post by: Rossvickicampbell on November 30, 2011, 05:14:55 pm
glad to see the comment about Jan 19 also father.  Now make sure for the 2 weeks before you don't leave the house eh!
Title: Re: Firko's new flat tracker
Post by: firko on November 30, 2011, 05:18:27 pm
Thanks boys ;D
What I'm going to do Jim is to send as many flat track frame makers as I can find detailed photos of the overall frame and close ups of key parts. The frame is stamped 0001 on the steering head and 'Dan the Creator' is written in weld on the swingarm. I've seen enough custom frames to know it's not a home made amateur hobby creation ...this puppy's been built by someone who knows his stuff. Even the footpegs are hand made and are mini works of art.

 Yeah Ross, my friends and family reckon they're going to wrap me in cotton wool. I don't think I could handle being sent home again!

                   (http://i1112.photobucket.com/albums/k495/firko2/IMG_6128.jpg)
                   (http://i1112.photobucket.com/albums/k495/firko2/IMG_6139.jpg)
                   (http://i1112.photobucket.com/albums/k495/firko2/IMG_6124.jpg)
                   (http://i1112.photobucket.com/albums/k495/firko2/IMG_6126.jpg)
Title: Re: Firko's new flat tracker
Post by: Curly3 on November 30, 2011, 06:03:44 pm
Another good score Firko, looking forward to seeing you throw the leg and drop the clutch in Canberra. ;D
Title: Re: Firko's new flat tracker
Post by: bazza on November 30, 2011, 06:22:13 pm
Ditto the take care and stay out of the shed for all of january,no scratches
Dr Baz
Title: Re: Firko's new flat tracker
Post by: mainline on November 30, 2011, 06:31:50 pm
Ditto the take care and stay out of the shed for all of january,no scratches
Dr Baz

and probably even avoid playing with old rusty motorbikes ;D although the temptation is probably too much. Bike looks cool, should be a good thing. Looking forward to seeing it evolve.

Title: Re: Firko's new flat tracker
Post by: firko on November 30, 2011, 06:34:59 pm
Quote
Another good score Firko, looking forward to seeing you throw the leg and drop the clutch in Canberra.
The bike might be racing in Canberra Steve but it won't be me riding it. I'll be in plaster for most of next year so it'll be one of the Klub Kevlar good ol' boys on board her and the 360 Hindall tracker.
Title: Re: Firko's new flat tracker
Post by: Tornado on November 30, 2011, 09:00:23 pm
me likey
Title: Re: Firko's new flat tracker
Post by: Curly3 on November 30, 2011, 09:02:24 pm
In that case then I'll get a Sidecar organised for you, Freaky's a " Swinger ". ;D
Title: Re: Firko's new flat tracker
Post by: dalesween on November 30, 2011, 09:23:39 pm
Good score Firko,nice early Xmas pressie ;)

cheers Dale.
Title: Re: Firko's new flat tracker
Post by: pancho on December 01, 2011, 06:37:22 pm
 Looks like really cool pre-70 machinery?
 Take care with your own 'body mods' and stick to the instruction book and get fit and healthy Firko
 cheers pancho.
Title: Re: Firko's new flat tracker
Post by: firko on December 01, 2011, 09:36:12 pm
I hope the bike fits into pre '70 Wal but I doubt it.....at least the engine is legal for the class.
My Hindall dirt tracker's legal for pre '70 but the engine's not so I may do a swapsy...we'll see as we get further into it.(http://i1112.photobucket.com/albums/k495/firko2/IMG_6025.jpg)

Thanks for the kind wishes Wal.....2012 is going to be a long year on crutches but it'll be worth it.
Title: Re: Firko's new flat tracker
Post by: pancho on December 02, 2011, 08:57:17 am
 'Onya Mark!
 How about that pipe! Never seen a 'pong box' AND megaphone combo before!
 cheers pancho.
Title: Re: Firko's new flat tracker
Post by: mx250 on December 02, 2011, 09:41:44 am
'Onya Mark!
 .............. megaphone combo before!
 cheers pancho.
Although it's a megaphone in shape it is actually one of those multi disc variable mufflers. It looks a very 'period correct' pipe - pretty rudimentary, no 'belly' etc.
Title: Re: Firko's new flat tracker
Post by: firko on December 02, 2011, 05:27:22 pm
Wal..the 'mega' is, as Graeme says a Supertrapp muffler with adjustable/removable discs to supposedly lessen noise and to 'tune' the amount of back pressure. I'm not so sure about the tuning factor but they work pretty well in the noise abatement department. I was told by the bloke who sold it me that it's a Jemco flat track pipe that had been fitted to an MX360 powered flat tracker. It's got no fat belly as AHRMA don't allow 'fatty' centre sections or tapered header pipes. It seems to work OK but we won't know 'til the bike does some serious action. The pipe's got a few dings so it'll hopefully be replaced later down the line.

Title: Re: Firko's new flat tracker
Post by: bazza on December 02, 2011, 07:36:42 pm
Marky those discs in a super trapp on my Xl 4 stroke really made a difference when you play with them.Baz
Title: Re: Firko's new flat tracker
Post by: JAP 454 on December 02, 2011, 08:53:11 pm
Hey Pancho
I haven't heard the term " Pong Box " for a loooong time, could that be something to do with our longevity ??
Foss
Title: Re: Firko's new flat tracker
Post by: pancho on December 05, 2011, 10:40:41 am
 Foss what about the fact that 2/s are full of "ung-dungs"..... thats what makes them run!
cheers pancho
Title: Re: Firko's new flat tracker
Post by: firko on December 15, 2011, 07:01:20 pm
FLAT TRACKER UPDATE:
I've finally had the time to pull the top off the engine and it's a real surprise. The seller told me it was a 'DT1MX' engine which could mean anything as the MX and garden variety DT1 shared the same engine numbers. Externally it was obvious that it at least had a GYT centre plug head so you can imagine how stoked I was to find, upon pulling the head and barrel off, a fresh, unused rebuild. The bore's as fresh as a daisy with nice new hone marks, the piston is used but it's got new rings and what seems to be a new little end. Best of all however is the excellent porting job that's easily as rad as my Warren Willing ported DT1 from Hell cylinder.
The transfers are opened up quite a lot and are blueprint matched to the case ports. The boost ports are huge and although the inlet is not as radical as on the Willing barrel, the exhaust used a totally different set of ideas. I'll photograph the two cylinders along with a stocker to show the work gone into it. Whoever set this engine up knew his stuff. I'll fit a new single ring .75 over piston and a Webco head and replace the points with PVL or DT400CDI....whichever works best.

I've had the detectives on the job identifying the frame and we're no closer to an answer. All of the evidence was pointing to a PDV (Powerdyne), a Taiwanese made mild steel Champion copy originally fitted with a Chinese DT1 clone motor but a few things contradict that theory. The first and most important in my eyes is that PDVs are MIG welded mild steel and painted while mine is beautifully TIG welded and chrome, not nickel plated. I don't know what steel it's made from but I can see that it's very thin walled tube and very light...signs that lead me to think it's 4130 chro-mo. Other details pointing it away from being a PDV are the engine mounts on mine are far better mounted than a PDV and the rear mount is gusseted, nothing like the PDV or Champion, the frame gussets are a different shape, the swingarm pivot area is different, the rear brake pivot is totally different and the footpegs and brake pedal on mine is mounted on a bolt up alloy plate while on a Powerdyne they're welded to the frame. Another point is that the Powerdyne has a rear loop while mine stops at the top shock mount. I looked really closely with a magnifying glass at the area to see it it's been chopped off after manufacture and it can clearly be seen that if it was cut, it was before the frame was chromed. Interesting also is the 0001 frame number stamped on the steering head, in a totally different place and numbering sequence that PDV used. The words "Dan the creator" are tig welded to the swingarm prior to it being plated which also points it away from being a Powerdyne. I've placed it on the 'Information Wanted' section of vft.org but after 3 months up I've had only one reply...to tell me that it wasn't a Champion and that it could be a very early Redline but I personally doubt it. Although the overall design is pretty close to the Champion and Powerdyne, I don't thinK it's either. It's kinda like the bastard son born from a Champion and Powerdyne mating ;D. The bottom line is that I think this bike is too well made to be a Powerdyne.

Because I'll be on crutches for most of the year, Yamaico Pete Rowlands will ride it at the Nats later in the year. He'll also be making the down pipe based on the dimensions of my very efficient Pete Reynolds up pipe on the DT1 from Hell. I'm hoping to have it and the Hindall RT1 at the Bonanza in April.
Not difference in pedal placement between PDV and my frame. Not also the different swingarm pivot gusset shape
(http://i1112.photobucket.com/albums/k495/firko2/62-cotton-0201.jpg)
(http://i1112.photobucket.com/albums/k495/firko2/IMG_6128.jpg)
Title: Re: Firko's new flat tracker
Post by: Curly3 on December 15, 2011, 07:13:15 pm
What class will that fall into Firko?
Title: Re: Firko's new flat tracker
Post by: firko on December 15, 2011, 07:22:16 pm
Quote
What class will that fall into Firko?
Steve, I'm hoping pre 70 if I can substantiate the frames D.O.B. If not pre '75.
Title: Re: Firko's new flat tracker
Post by: Graeme M on December 15, 2011, 07:30:09 pm
That's a real nice bike Mark and how cool that the engine is a piece of work? I shall look forward to seeing it on the track here for the DT Nats!
Title: Re: Firko's new flat tracker
Post by: Curly3 on December 15, 2011, 09:10:38 pm
That may mean I'll be riding the T20 against Pete and he'll be building my engine :-\
Nah I've got no dramas with that, the more the merrier, hopefully it'll squeeze into pre70.
Title: Re: Firko's new flat tracker
Post by: yamaico on December 15, 2011, 10:40:52 pm
That may mean I'll be riding the T20 against Pete and he'll be building my engine :-\
Nah I've got no dramas with that, the more the merrier, hopefully it'll squeeze into pre70.

Don't worry Steve, you're motor will be OK. The arrow on the top of the piston points towards the inlet port, right? ;D ;D
Title: Re: Firko's new flat tracker
Post by: Freakshow on December 15, 2011, 10:41:34 pm
i doubt you will find its pre 70, only a couple of guy had access to them first motors, the rest had to wait till the were in the showrooms and then modded the stock frames.   IF you can prove a Champion frame as pre 70 then you could use that as your carry over or as like frame based on the similarity to the Stock DT1 frame geo, but thats a DTanner discussion with the new rules on frames opening up.  rear wheel looks like a stock 73MX so it looks more like its gather bits along the way.  I would like to see a close up the swing arm rear, the section of the frame where the airbox is and is there a number on 4 digit number on the head stem ?

Great buy for what you paid, but i told you that when i seen the GYT barrell previously

I would use the current head firko and not the Webco, if you running it on the short curcuit.  HAd some long chats with Neil keen a few year ago and although alot of his engineering discussions where over my head there where a few things i did understand.  Check the cc on the GYt and then the Webco when you do the maths on it youll see why im suggestign stcik with it.
Title: Re: Firko's new flat tracker
Post by: firko on December 15, 2011, 11:17:05 pm
Quote
similarity to the Stock DT1 frame geo
The Champion frame geometry is nothing like the DT1 frame geometry Freaky. The wheelbase, rake, swingarm length, engine position are all very different. You'd never get away with the carry over argument.
Quote
doubt you will find its pre 70, only a couple of guy had access to them first motors
The DT1 came out in '68 and they sold truck loads of 'em. By mid '69 they were everywhere.
Quote
I would use the current head firko and not the Webco, if you running it on the short curcuit.  HAd some long chats with Neil keen a few year ago and although alot of his engineering discussions where over my head there where a few things i did understand.  Check the cc on the GYt and then the Webco when you do the maths on it youll see why im suggestign stcik with it.
I've got a number of choices including my modified GYT head. I've been running DT1's on Methanol for years and I agree, the GYT head is better than the others. I've got an idea with the Webco that I want to try. I've also got ACK and a Henderson heads to try.
Quote
I would like to see a close up the swing arm rear, the section of the frame where the airbox is and is there a number on 4 digit number on the head stem ?
There is no airbox and never has been. There are no tell tale mounting brackets if that's what you're getting at. I haven't got a closeup of the rear of the swingarm handy but it's very Champion in style, maybe PDV as well. The big difference on the swingarm is the weird brake stay mount, on top of the swingarm, not under it. Neither PDV or Champion did that...in fact I've never seen it done like that before. The rear wheel's maked 1972 so it's a DT2MX item.
(http://i1112.photobucket.com/albums/k495/firko2/11-08-10ChampionRollerDT1-2i.jpg)
 (http://i1112.photobucket.com/albums/k495/firko2/IMG_6124.jpg)
Title: Re: Firko's new flat tracker
Post by: Freakshow on December 16, 2011, 12:27:01 am
re above my point was it looks close enough to the Dt fraem rail wise to be a dt1 follow on ?

MAybe lotsa stockies were sold in 69, but i was referring to custom build frames, would only be a few makers doing the 2ees was my point on that.

in the first pics it looked to have a section for an airbox running along froim the side tab, but its not seen in the second set of pics so im not sure what going on there.

It doesnt have an engine shoe like a champion, with that rear mount more like the PDV fixed point. but the front mount is very sonic weld style. im wondering if it was made up in a shop by one of the guys doing foreignees for few extra bucks between races and this is somthing they tried based on the tubes they had and what bits where already fabricate they could drop in.   The swing arm plate is very agricultural and is the odd part like it was cut in on the job.  Whats the line on the arm, is it the chrome or is it steel and thats the drawing line ? if so that also makes me think it was a shop parts job.

Just thinking out loud.
Title: Re: Firko's new flat tracker
Post by: firko on December 16, 2011, 07:57:59 am
Quote
'in the first pics it looked to have a section for an airbox running along froim the side tab, but its not seen in the second set of pics so im not sure what going on there.]
What you're seeing is the footpegs. The seller bolted them to the inside of the number plate mount to get them out of the way for shipping.
 
Quote
MAybe lotsa stockies were sold in 69, but i was referring to custom build frames, would only be a few makers doing the 2ees was my point on that.
When you said "only a couple of guy had access to them first motors" I presumed you were talking about motors. I agree that there weren't many frames in 69. Ray Hemsley and Harry Hindall for sure but Harry only made two or three flat track frames. The rest were motocrossers.
Quote
It doesnt have an engine shoe like a champion, with that rear mount more like the PDV fixed pointbut the front mount is very sonic weld style. im wondering if it was made up in a shop by one of the guys doing foreignee
It's pretty obvious now that it's neither a Champion or a PDV. You're possibly right but I'd like to know who that "shop guy" is? Who's "Dan the creator" who was proud enough of his work to sign it?
Quote
The swing arm plate is very agricultural and is the odd part like it was cut in on the job.  Whats the line on the arm, is it the chrome or is it steel and thats the drawing line ?
The plate's no more agricultural than the Champions I've owned or on the Champion swingarm I have here now. In fact, but for the very slightly different shape, they could have been made by the same man. I don't know what the line is, it's like a flaw in the chrome...I'll see if I can polish it out when I get to that part of the build.
Quote
Just thinking out loud
I'm glad for the input, it's a mystery that needs solving. Last week I bought an RT2MX engine from a guy who races a Champion RT1. He told me that he was originally interested in the bike but was put off, thinking it was a PDV. He now reckons he should have bought it, seeing more clearly in my photos that it's not a PDV. 

Below is a comparison between the Champion, PDV and my mystery frame. There are strong similarities between the three, minor details being the only way to separate them. Note similarities on this Champion swing arm rear axle plate to my new project. Almost the same. Although its unclear in the photo, the PDV is similar as well.
(http://i1112.photobucket.com/albums/k495/firko2/championYamaha.jpg)
(http://i1112.photobucket.com/albums/k495/firko2/10Oct01PVD-YamahaDT400.jpg)
(http://i1112.photobucket.com/albums/k495/firko2/IMG_6120.jpg)
Title: Re: Firko's new flat tracker
Post by: Tom Laird on December 18, 2011, 03:58:16 pm
Are you sure it's not a Racemaster? Looks like the larger Racemaster s I have seen. never was one for a 2-smoke before ,but could be. they built some that looked like Champs and some that were off The Trackmaster/Triumph platform. Don't know who those  guys were. The welds look too good for early Jerry Cheney,but he built a lot of swingarms with a top pivot lug.    TCL
Title: Re: Firko's new flat tracker
Post by: Slider29 on December 18, 2011, 07:14:51 pm
This is a great thread . I'm finding it very interesting . Keep up the good work .
  cheers  Mark
Title: Re: Firko's new flat tracker
Post by: firko on December 27, 2011, 04:18:38 pm
Now this is a sweet little flat tracker. It's got the unobtainium chrome bore DT1-MX barrel (he's wrong, it's not DT2MX), a hard to find C&J DT1 flat track frame, Barnes wheels, Airheart brake, a Maely tank and all sorts of cool stuff. It's not cheap by any standard but for anyone who's into early Yamaha framers, this is bordering on holy grail stuff.
(http://i1112.photobucket.com/albums/k495/firko2/12Dec26YamahaDT2.jpg)
72 DT-2 mx first year, chrome lined non reed GYT top end RARE..,square/straight cut primary gears RARE, right side shift,
mikuni,K&N, recent new clutch plates,T&M pipe, Maely fiberglass tank coated w/ Caswells, Dallas Baker /C&J nickled frame,
Yamaha forks and chromed triple clamp- pealing a bit, Kenny Roberts bars,Spool w/ Akront and Pirelli tire, Rear Barnes quick
change w/ Carlisle tire, Airheart master cyl, new rear caliper. Spare cylinder w/new sleeve, piston and ring, spare front and
rear gearing/sprockets, and main jets. This is a runner, Bel-Ray trans oil only, Maxima castor oil mix. Needs new float
needle. Been in the family forever, built & maintained by my uncle since the 70's. Can send more pics on request.see more on
facebook link too, 02 sportster and 03 plated wr450f. Orange county Ca.
http://www.facebook.com/media/set/?set=a.308692579153539.73890.100000383986288&type=1
$4,200 obo
 [email protected] 
Title: Re: Firko's new flat tracker
Post by: mick25 on December 27, 2011, 05:56:38 pm
Cool little dirt tracker firk
Theres some nice dirt trackers for sale in the states thats for sure 8)
Is that bloke in the pic a mexican  8)
Title: Re: Firko's new flat tracker
Post by: firko on December 27, 2011, 10:18:05 pm
I might be onto a bloke who's producing made to order Sonic rigid frames to suit a number of different applications. If all of the planets align I'm considering using one of my growing flock of DT1/RT1  engines to build one of these...............
(http://i1112.photobucket.com/albums/k495/firko2/5234006295_e7642e9ffd_z.jpg)
This is Don from Metro Racing's genuine rigid Sonic framed DT1. Cool.
Title: Re: Firko's new flat tracker
Post by: 52 on January 07, 2012, 11:54:45 am
Meet Don while I was there, he is a big bloke, must be well over 6 ft. He was riding a real trick looking Bighorn with xtra finning, very neat. Not surprized with that DT1 pic, Springsteen rides some of his stuff.
Title: Re: Firko's new flat tracker
Post by: firko on January 07, 2012, 02:01:06 pm
I logged onto Marks Swapmeet this morning and was greeted on the opening page by this picture our Freaky on his Champion DT1 doing his best Gary Nixon impersonation 8).
 (http://i1112.photobucket.com/albums/k495/firko2/freaky.jpg)

By the way...where is Freaky hiding?
Title: Re: Firko's new flat tracker
Post by: firko on January 07, 2012, 02:06:45 pm
How nice is this Champion DT2 that's currently up for sale on www.vft.org (http://www.vft.org).  I'm not in love with the colour coded barrel/head but other than that it's a well laid out bike.
(http://i1112.photobucket.com/albums/k495/firko2/ChampionYamaha-2.jpg)
1972 Yamaha Champion 250.    All the right stuff!!   Salida, CA.
$3200
Cliff   209-612-7321 or email me at [email protected]
Title: Re: Firko's new flat tracker
Post by: Tahitian_Red on January 07, 2012, 05:46:58 pm
I noticed that myself Firko.  Salida is about an hour from my house and the price is not too crazy.  If the color scheme was classic Yamaha yellow w/strobe striping I might not be able to contain myself.
 ;D

I didn't like the way the rear of the seat fits the fender though.
Title: Re: Firko's new flat tracker
Post by: firko on January 07, 2012, 10:01:09 pm
Jay I reckon that little Trackmaster DT2MX I posted a few back is a much sweeter bike. It's got all of the bells and whistles including an unobtainium Maely tank like I've been looking for for 20 years.
The closer you look at this bike, the better it is....to me anyway ;D.
(http://i1112.photobucket.com/albums/k495/firko2/12Dec26YamahaDT2.jpg)
Title: Re: Firko's new flat tracker
Post by: Freakshow on January 30, 2012, 01:44:22 am
Been busy, raced long track last week.  awesome fun. just trying to sort out the 2 vavle ( needs a head gasket ) then park it ready for the winter season.  then onto building bikes to race this year.

Firko, purple bike #52 above is an 69 Trackmaster frame and later glass.  ( looking for a 5" rear guard and solo/pillion for that one. ) But way too many progects on the go to finish em all....
Title: Re: Firko's new flat tracker
Post by: firko on April 10, 2013, 03:33:44 pm
 Here's a couple of sneak preview shots of my little Fasttrack Yamaha 360 that should be completed within the next couple of days. It's come along way since the little grey primer tanked bike arrived from the US a year or two ago. I had intended to take it to HBBB but illness with my travel partner saw us having to postpone at the last minute. I'm pretty happy with the way the bike's turned out  but it'll be undergoing further changes including a new reed valve race engine before the Nats. I'll finish off the few loose ends and detail it a bit and then take some decent photos over the coming weekend.                                                           
                                                                           (http://i1112.photobucket.com/albums/k495/firko2/025_zps874a4a06.jpg)
                                                                           (http://i1112.photobucket.com/albums/k495/firko2/021-1_zps7c37d44b.jpg)
                                                                           (http://i1112.photobucket.com/albums/k495/firko2/018-1_zps46e25913.jpg)
Title: Re: Firko's new flat tracker
Post by: oldyzman on April 10, 2013, 07:22:58 pm
So some of these flattrackers do not have a front brake, can they run at nepean DT in the same class as the CR's and YZ' run in?
Brett
Title: Re: Firko's new flat tracker
Post by: Tim754 on April 10, 2013, 07:27:36 pm
Mmmmmm sweet as Firko ! sweet as!  :)      (the bike you clowns!)
Title: Re: Firko's new flat tracker
Post by: Canam370 on April 10, 2013, 09:08:07 pm
MMmmmmm, very nice!
This should be Firko's flat track ride. Unusual -tick. Rare -tick. Simple -tick.  Twist the throttle and GO!

http://www.ebay.com.au/itm/230958803677?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Title: Re: Firko's new flat tracker
Post by: firko on April 10, 2013, 10:17:41 pm
Quote
This should be Firko's flat track ride. Unusual -tick. Rare -tick. Simple -tick.  Twist the throttle and GO!
Ironically I once owned a Rokon, I kept it my ex's place in California to ride when I visited but after a while I sadly I stopped visiting. It was an enduro version and despite the transmissions belt tensioners tendency to slacken off every 20 kilometres or so it was a solid performer.
Quote
So some of these flattrackers do not have a front brake, can they run at nepean DT in the same class as the CR's and YZ' run in
You have to run a front brake here, I've put the spool front wheel aside and have fitted a 19" Akront laced up to a YZ Yamaha brake. You can't run these bikes against the moderns these days as the rules state that bikes need stock frames. They're right to run against the stock frames vintage motocrossers though. If someone was in the position to put up a good argument, I reckon you could possibly get away with entering them in any slider only races as it could be argued that these bikes were built with the very same intentions as a Hagon or Elstar.....to go sideways on a dirt track.  ;D ::)
Title: Re: Firko's new flat tracker
Post by: oldyzman on April 10, 2013, 11:23:57 pm
firko, are you going to bring that lovely maroon Yammy 360 to nepean ant time soon?
Brett
Title: Re: Firko's new flat tracker
Post by: firko on April 11, 2013, 10:03:15 am
Quote
firko, are you going to bring that lovely maroon Yammy 360 to nepean ant time soon?
You betcha Brett ;D. I'm planning on taking it to the May practice day to run it (and myself*) in and tune it. If my health and riding skills come back a tad more I'd like to debut it at the Charity Meeting later in the year. If I'm not up to it yet I'll let a mate race it at that meet.

* Because of my then declining health I haven't ridden on a race track since the early noughties so even though I'm much, much healthier it's still going to take a lot of practice for me to get back up to reasonable race speeds. ;D
Title: Re: Firko's new flat tracker
Post by: jimg1au on April 11, 2013, 11:29:46 am
mark its not a fasttrack frame as they are like champions with the rear engine mounts in the shoe as part of the swing arm.also the swing arm is not fasttrack either.they also they have stearing stops welded on the frame.i can give you the familys (son) email i have had emails from him he raced flattrack with his dad on there frames
jim
Title: Re: Firko's new flat tracker
Post by: firko on April 11, 2013, 11:54:25 am
Quote
mark its not a fasttrack frame as they are like champions with the rear engine mounts in the shoe as part of the swing arm.also the swing arm is not fasttrack either.they also they have stearing stops welded on the frame.i can give you the familys (son) email i have had emails from him he raced flattrack with his dad on there frames
jim
It's a Fastrack this week Jim ;D, it changes all the time. I've had people on three continents offering up their suggestions as to who might have made it and Fasttrack has the most votes from folks the USA. It's not Champion, PDV, Knight,Trackmaster, Redline, (Jerry) Cheney and C&J. It's been suggested that it might be a Boss frame but I don't think so. Whatever it is it's professionally made and really well TIG welded. I still think it looks closer to a Fastrack than anything else....remembering that it's 0001 frame number which would possibly make it a lot different to frames that came later.

Here's a Boss frame compared to mine....close but no cigar.
                                                             (http://i1112.photobucket.com/albums/k495/firko2/03Mar08-BossHD250_zps6baa9b3f.jpg)
                                                             (http://i1112.photobucket.com/albums/k495/firko2/IMG_6120-2_zpsa19b0a08.jpg)
                                                             (http://i1112.photobucket.com/albums/k495/firko2/IMG_6124.jpg)
This is the area of the bike that separates it from others and should make it identifiable, the above swingarm brake stay and lack of rear frame loop are fairly uncommon design facets.
Title: Re: Firko's new flat tracker
Post by: firko on April 18, 2013, 03:15:15 pm
(Nearly)Finished:  
Well the little flat tracker is just about finished. All it needs is a chain, shorter front brake cable and fluids. It's a bit of a mystery as to what the frame is, we've narrowed it down to a Boss or Cycle Centre frame but in reality we're still guessing. Whoever made it it's a beautifully light, tig welded frame with a lot of 'different' ideas. I do however know that the engine's a piston port 360 RT1 Yamaha with DT2MX gears, balanced 'Franks Cranks' crankshaft, ,mild porting, Single ring RT1MX piston, PVL ignition, 38mm Mikuni, Jemco flat track pipe. The rear wheel is from an MX250 with a Mitas trials tyre, the front is a 19" Akront rim laced to a MX250 hub with a Dunlop K180 tyre. The rear shocks are Gazi's, forks are from an RD250 Yamaha. Handlebars are inter-Am solid alloy with Magura levers and throttle. Yamaha MX grey cables. The tank is a small Champion version and the seat is early Champion big bike version. It's painted candy apple red by me. The engine will eventually go back in my Cheney pre 65 motocrosser and be replaced by a DT2MX reed engine on methanol for the 250 class as my upcoming 750 Yamaha will cover the big classes. I hope to get it sorted at the next Nepean practice day and debut her at the Charity meeting late in the year.
 
                                                                                (http://i1112.photobucket.com/albums/k495/firko2/flattracker002_zps0252c2d4.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker002_zps0252c2d4.jpg.html)
                                                                                (http://i1112.photobucket.com/albums/k495/firko2/flattracker008_zpsf1322e4b.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker008_zpsf1322e4b.jpg.html)
                                                                                (http://i1112.photobucket.com/albums/k495/firko2/flattracker010_zps5b852d2c.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker010_zps5b852d2c.jpg.html)
                                                                                (http://i1112.photobucket.com/albums/k495/firko2/flattracker015_zps2a973a2e.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker015_zps2a973a2e.jpg.html)
                                                                                (http://i1112.photobucket.com/albums/k495/firko2/flattracker024_zps3a28860d.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker024_zps3a28860d.jpg.html)
                                                                                 (http://i1112.photobucket.com/albums/k495/firko2/flattracker007_zpsadc090f5.jpg) (http://s1112.photobucket.com/user/firko2/media/flattracker007_zpsadc090f5.jpg.html)
                                                                                
                                                                                
Title: Re: Firko's new flat tracker
Post by: smed on April 18, 2013, 03:35:44 pm
Looks shit hot Firko,well done 8)
Title: Re: Firko's new flat tracker
Post by: Scunge on April 18, 2013, 03:49:06 pm
Very nice job Uncle Firks!

There must be something in this dirt track thing, judging by the amount of traffic on the forum, in this area.

Well done, send some photos of it in action!
Title: Re: Firko's new flat tracker
Post by: Slider29 on April 18, 2013, 05:28:47 pm
Yeah Firko!
She's a real sweetheart. Candy Apple red looks nice.
Well done.  regards  Mark
Title: Re: Firko's new flat tracker
Post by: mainline on April 18, 2013, 05:40:56 pm
Very, very cool. Love your work!
Title: Re: Firko's new flat tracker
Post by: the stig on April 18, 2013, 06:35:48 pm

     Very nice Firko she sure has all the goodies including Looks..

     The Stig.
Title: Re: Firko's new flat tracker
Post by: firko on April 18, 2013, 10:14:40 pm
Thanks fella's.
Quote
She's a real sweetheart. Candy Apple red looks nice.
I've loved Candy Apple Red ever since I first saw Johnny Stewart's McGee-Shell-Trackburner midget speedcar at the Sydney Showground Speedway in the sixties. Then when I saw Husky Pete's candy red Huskys it became a no brainer as to what colour to paint it. However, seeing that my new Shell-OW72 750 Yamaha is painted in mid seventies Yellow, black and white Yamaha works colours, I'm considering painting this little bike to match its new partner in crime. I've already got the black and white stripe graphics so once the big bike gets here I'll match the shade of yellow to it and possibly paint the little bike. The candy reds not disappearing though, I've got plenty of paint left so I'll probably paint the tank highlights on my pre 60 TriBSA that colour.

Here's a tracker with the same bodywork and the same graphics kit I bought.....what do you guys think....red or yellow?
                                                                                    (http://i1112.photobucket.com/albums/k495/firko2/r1_zpsecf2f651.jpg) (http://s1112.photobucket.com/user/firko2/media/r1_zpsecf2f651.jpg.html)
Title: Re: Firko's new flat tracker
Post by: oldyzman on April 18, 2013, 10:23:27 pm
The candy is nice, but you cannot beat the Kenny Roberts Yellow on a Yamaha flatty,
Cant wait till Nepean is on....
Brett 
Title: Re: Firko's new flat tracker
Post by: SON on April 18, 2013, 11:15:04 pm
Hard to beat Bumble Bee Yellow for old Yams
Wood Yams look good in Blue.
Lovely bike Mark
Title: Re: Firko's new flat tracker
Post by: Iain Cameron on April 30, 2013, 09:39:58 pm
Lovely looking slider Mark she is a credit to your skills . Flat track is not a discipline down here but Shane (fat boy ) loves it .Im going to have a word with the other old farts down here about a one off meeting on a oval style grass track for the old bikes . our club has a majority of modern bikes and their version  of grass track is all stop start corners and short straights . I recon  wide open corners and long straights grass track would bring the older bikes and riders back .
Iain