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Old 11-19-2009, 09:20 AM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: 80cc powerking motor 30km/h top speed

Clean or replace the plug, and while it's out, look at it. What color is it? Once you know how the engine is running, you can diagnose the problem and fix it. Don't just start randomly chasing down phantom problems....get a baseline from which to start and then check/change one thing at a time.
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