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Old 04-22-2014, 10:19 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Default Re: Engine vibrations, not from mounting

Ill agree it does sound like you have an air / vacuum leak, make sure the carb is pushed up tight on intake tube and for sure che k to be sure the gasket between intake and cylinder is good.

I had one engine do the same thing and on mine it was the crank seal under mag rotor, hopefully your leak is a simple gasket and not the seal.

Best wishes.
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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