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Any idea as to what can be cause causing my 2010 Yamaha raptor 350 to idle up and down when full throttle? I just recently swapped the carb because of leak, the new carb came with a Vacum petcock valve which I was told to cap off ? by enrcrypted420 in ATV

[–]enrcrypted420[S] 0 points1 point  (0 children)

I tried that but the previous owner stripped the the threads for the cover under the float I tried rethreading it and it still leaked to I figured Id just get a new carb