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Post Info TOPIC: Prettifying a TTR 250


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RE: Prettifying a TTR 250
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Happy belated birthday Shaun!  BTW I tell the wife that I save working on the bike as I don't have to pay mechanics.  It works.  Sort of. ;)



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Senior Member

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Ace cake!

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Pete Brown

Keighley, West Yorkshire

'94 Yamaha TTR 250 Raid (with Open Enduro headlight, grrr...)

'54 plate Suzuki GSF 650S (Bandit)

Previously Yamaha YBR125, Yamaha TY125, Yamaha TY250



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Great News - I started the bike up this weekend! 

 

I filled with oil, turned it over by hand a coupel of times to get the oil moving and check for any possible fouls. nothing. All clear to attempt start! 

Hooked the bike up with jumper leads to my car, pressed the button and...... Nothing! Had a earth issue and the fuse popped.. Fixed that in 5 min and attempted again.

Bike turned over about 5 times, then.... Boom, it started!

Motor sounds fine, and revs up quite smoothly.  But I cant get a stable idle on the bike. it either idles too high, or too low with a little bit of a backfire and then dies. 

What i then saw was that the carb is leaking petrol. When i stripped the carb, i made sure all the seals were in good nick, and a was very meticulous when i put it all together again. looks like it might have to come out again!  

 



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Super Guru

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Good and bad news!

If you have a good gasket on the float bowl and the petrol isn't leaking from the overflow then the usual culprit is the diaphragm cover. Did you face the little plate and fit new O rings? Occasionally it is necessary to face the carb body where it sits. I use some wet and dry in a steel ruler to make sure I keep the surface flat. If there is a slightly raised edge there it can stop the cover tightening down properly.

Brian



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Exeter, Devon, UK

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loll once u get it running its bulletproof MINT keep up the good work

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