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Hey maybe someone has one of these or knows more about it than I do. Bike will start and run, but wont sit at idle very nicely, if I keep it revved up itll stay reved up no problems its just being really finniky, (all this after it was properly warmed up etc) It would sit at about 2,000rpm and then drop to about 1500 then 1000 and then die all within id say 5 or so seconds. Figured it was a idle jet problem....... so i took the carb all the way out to check everything

I just took the carbs off, it has dual carbs, I pulled off the bowls, checked everything looks ok, cleaned out the jets etc, nothing major or out of place, rubber cemented them back together and put it back in, put it back in checked the rubber mounts that it connects to, and got it back in there and tightened it in there good, no leaks as far as i could tell nothing. (had that problem with an old yamaha 350xt the intake rubber wasnt working right and wouldnt restart after it was warmed up)

Anyway tried playing with the idle mixture screw, and adjusting out the throttle cable etc, to no avail....... anyone got any other bright ideas? When I was driving it down the street it was kinda surging earlier and wouldnt rev up to high nicely without feeling forced...... wouldnt really go past 6 or 7 nicely.....??
 

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GHOSTRIDER
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3,361 Posts
All the symptoms you describe point to a lean condition. Bench sync the carbs next time you have them off. And carb work before a valve clearance check is futile. You need to get yourself a service manual for that bike so you can fully understand the maintenance procedures and specs. If you have any cracked or loose leaking carb holders, vacuum nipples leaking around caps or hose connections can lean an engine out. Improper float bowl fuel level can cause a lean condition. Let us know whats up with the valves.(Clearances):newyear:
 
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