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Author Topic: Project T20 250 Dirt Tracker.  (Read 15741 times)

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Offline yamaico

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Re: Project T20 250 Dirt Tracker.
« Reply #45 on: October 16, 2011, 02:54:04 pm »
Quote from: firko on October 16, 2011, 02:51:01 pm
I remember reading a very interesting article on the 'net about Kanemotos experiments with twingling his engines, especially the T20 and later the T500. Apparently both were fast and got the power down really well. The problem with the triple was finding a sympathetic balance factor and starting the thing. I'm going over to the Grand Poobahs place on Tuesday Pete so I'll get in his ear and see what he knows about this twingling black art ;).
Sounds like a plan Mark. Are we going to let Steve in on any of this? Nah, we'll just go ahead and do it. ;D ;D
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Offline EML

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Re: Project T20 250 Dirt Tracker.
« Reply #46 on: October 16, 2011, 02:59:08 pm »
Matt Maloney is a young Guru in this department with the XS650 motors. His tag is 270 and he lives at Morasnbah at the moment though his dad is from Vic. Very knowledgable about ins and outs of single-twins.
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mx250

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Re: Project T20 250 Dirt Tracker.
« Reply #47 on: October 16, 2011, 07:28:57 pm »
How about a 270 degree twin ;).

( I should have read page four before sticking my bib in)
« Last Edit: October 16, 2011, 07:31:02 pm by mx250 »
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Offline Freakshow

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Re: Project T20 250 Dirt Tracker.
« Reply #48 on: October 17, 2011, 10:56:19 am »
Short circuit Guys here with T500 OUTFITS  reckon they get off the line a pooftenth quicker, but not noticible any where else around the track, and some have even gone back to normal on the next rebuild.

Stick with plan A, get it on the track and tinker later.
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Offline Freakshow

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Re: Project T20 250 Dirt Tracker.
« Reply #49 on: October 17, 2011, 10:57:09 am »
PS.  when you find one of them rear guards to suit an 19" rear full length can you popint me in the right dirrection ans i need one for my stalled trackmaster DT1.....   
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74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Curly3

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Re: Project T20 250 Dirt Tracker.
« Reply #50 on: October 17, 2011, 04:39:31 pm »
Okay plan A it is, now to sort out Plan A, subsection B, to Twingle or not.
I'll make that decision when the engine's stripped and Pete's had a good look.
On the look out for a decent pre70 tank, pref - alloy or something off an early TS.
And an 18" rear wheel complete with backing plate and an alloy rim, dirt catcher preffered to match the front.
Would this bike be eligible to be ridden ( not by me ) in the Super Senior class?
« Last Edit: October 17, 2011, 04:57:33 pm by SlideRulz »
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Offline EML

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Re: Project T20 250 Dirt Tracker.
« Reply #51 on: October 17, 2011, 05:10:06 pm »
Would this bike be eligible to be ridden ( not by me ) in the Super Senior class?
[/quote]
I see a small problem here-not so much the eligibility but with the rider.
The more senior a rider gets the more sense they attain (usually) and therefore a "super" senior should have copious ammounts of the above. However, there are always exceptions to every rule, so you might just find your guy-somewhere....... :D :D
 
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Curly3

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Re: Project T20 250 Dirt Tracker.
« Reply #52 on: October 17, 2011, 05:55:09 pm »
Believe me, I have someone in mind and he did raise an eyebrow, just.
Or I might even ride for another 19 years so I'll be eligible, I did have 30 years off.
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Curly3

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Re: Project T20 250 Dirt Tracker.
« Reply #53 on: October 17, 2011, 06:58:49 pm »
Steering head bearings, 48 OD X 20 ID, are these common sizes?
Lazy I know.
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Offline tony27

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Re: Project T20 250 Dirt Tracker.
« Reply #54 on: October 18, 2011, 04:54:16 pm »
Had a quick look on wemoto & closest they list by size is 48x25x13
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Curly3

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Re: Project T20 250 Dirt Tracker.
« Reply #55 on: October 18, 2011, 05:37:01 pm »
Cheers Tony, I'll check them out, should be easier to make an internal spacer than an outer.
The closest I could find was 47 OD & 20 ID.
P.S. I just found a 42mm OD bearing, that's probably gunna be the one.
« Last Edit: October 18, 2011, 05:47:45 pm by SlideRulz »
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Offline Freakshow

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Re: Project T20 250 Dirt Tracker.
« Reply #56 on: October 19, 2011, 09:56:53 pm »
Any pre 75 model bike is able to be ridden in super senior, buy a senior - over 70 YO ( or anyone else in the appropriate age group. ) if you like i can ride it for you in the 40-49 group - looking for extra ride at canberrs DT
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74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline Freakshow

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Re: Project T20 250 Dirt Tracker.
« Reply #57 on: October 19, 2011, 09:58:53 pm »
Dont twingle just yet. I have a tank and rear wheel and both cups/ bearings but used, not usre what else i have but ill post it in your wanted section
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74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline firko

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Re: Project T20 250 Dirt Tracker.
« Reply #58 on: October 24, 2011, 11:51:19 am »
Here you go Steve.......theyre popping up everywhere. This is pretty cheap considering it's got an aftermarket frame.
http://cgi.ebay.com/ebaymotors/Other-Makes-T20-Vintage-Flat-Track-Suzuki-X-6-Hustler-/180741934652?pt=US_motorcycles&hash=item2a150f0e3c
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Offline pancho

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Re: Project T20 250 Dirt Tracker.
« Reply #59 on: October 24, 2011, 01:52:18 pm »
 That looks like a fun machine!
 I guess it would take a while to work out which gears to skip at Nepean.
cheers.
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