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Old 07-29-2010, 08:05 AM   #6
Joined: May 2010
Location: Huntington Beach, Ca.
Oddometer: 37
You say new engine, is it rebuilt fully, or a used one that is in running condition? Have you checked the compression? It is the compression that 'sucks' the gas vapors into the combustion chamber. Covering the intake, or 'choking' is the sign of a plugged carb, but you have cleaned it completely. I'd almost wager a look at the valve train, do you have access to an unvalved compression meter to do a leakdown test?
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