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Old 02-16-2013, 11:23 AM
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2door 2door is offline
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Default Re: new member. long time motorised bike user. need help

Originally Posted by Bikeguy Joe View Post
It sounds kind of like an air leak. Maybe a very small one. Crank seals leaking?

I'd definitely go to 40:1, not that it will help this problem.
I concur. What you have is the classic symptoms of excess air entering somewhere it isn't supposed to. Intake manifold to cylinder gasket, carburetor to intake manifold, crankshaft seal.

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