Question about Yamaha YZ 125 Motorcycles
It sounds like you cooked her. If you are jetted lean, and run it wide open for a long period of time, it melts the ring to the piston.
Do a compression test, remove spark plug, thread in gauge, and hold throttle wide open and kick untill the guage stops climbing (Around ten or so) Less than 100 psi is bad.
Posted on Jul 13, 2009
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Posted on Jan 02, 2017
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