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Old 05-02-2009, 03:57 PM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: exahust problems

Not sure about with synthetic oil, but all the two strokes I have ever run, blow blue grey smoke when too rich. I have never seen anything even approaching black.
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