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Old 04-19-2012, 11:25 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: Crankshaft gasket blown?

I had a crank seal go bad on the rotor side of an engine and the air leak it created caused the engine to rev as if it was on cruise control because of the lean condition the extra air was causing, it idled very fast and no amount of idle screw adjustment made any difference, that engine ran smoother than ever and made loads of power but was going to be toast very soon if I had not shut her down when I did.

This was my experience with a bad crank seal.

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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