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1vj wont start from cold for love nor money 1vj wont start from cold for love nor money
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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #16  
Old 21 Dec 2007
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def not silencer, more top end/barrel are but shes a noisy engine so its hard to tell.going back to an earlier question of mine how do i check/set correctly, the engine timing.as i said she runs when hot but think a check wouldnt hurt.
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  #17  
Old 21 Dec 2007
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Xcuse me
I really do not know everything. But always happy to help and even better even, to talk and talk and talk bikes :-).
Your sneezing ... get to a doctor, fast! This might be the superflu!

I'd recommend to ignore it, there are other things that are far easier to diagnose and to correct.
Following the track of lean running; the combustion is too slow, so when the inlet valves open combustion is still going on, which backfires (softly at idle) into the carb. -> Solve the lean running and the sneeze goes away.

Auke
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  #18  
Old 21 Dec 2007
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Quote:
Originally Posted by aukeboss View Post
...Following the track of lean running; the combustion is too slow, so when the inlet valves open combustion is still going on, which backfires (softly at idle) into the carb. -> Solve the lean running and the sneeze goes away.

Auke
:-) da boss-man has arrived
That was my first line of thinking, but the only instance I have seen of this the carbs tended to blow off as a result. And it weren't no sneeze. More like an bloody big pop. But if it is the head end, not much else it can be.
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  #19  
Old 21 Dec 2007
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Cool Good ole' Auke!
Quote:
Originally Posted by aukeboss View Post
I really do not know everything. But always happy to help and even better even, to talk and talk and talk bikes :-).
Your sneezing ... get to a doctor, fast! This might be the superflu!

I'd recommend to ignore it, there are other things that are far easier to diagnose and to correct.
Following the track of lean running; the combustion is too slow, so when the inlet valves open combustion is still going on, which backfires (softly at idle) into the carb. -> Solve the lean running and the sneeze goes away.

Auke
Thanks auke! Always good to know your about to add your knowledge to the pot! I Love this site.....
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  #20  
Old 21 Dec 2007
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Yep, pop back thru the carby means lean or bad timing, but it sure sounds lean. Those carb blocks/spacers could induce that if they are letting in air, which will in turn mess up the rest of the idle circuit. That and the idle mixure setting shopuld be checked.

Steve
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  #21  
Old 21 Dec 2007
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Originally Posted by odannyboy View Post
.going back to an earlier question of mine how do i check/set correctly, the engine timing.as i said she runs when hot but think a check wouldnt hurt.

As per your workshop manual - you've got one?

Align all the relevant marks on the camshaft and the flywheel with the camchain in correct tension and it should be set OK.
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  #22  
Old 23 Dec 2007
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aukeman youve confirmed what i suspected but didnt know if that could happen.cheers.i think we must be looking at a real lean mix issue here.
anyhow thanks for all the advise guys.im gonna leave this one now and come back later in the spring when i bring the bike back to my house.ill let you all know now i get on.se you then and thanks once more!!!!!!!!
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