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Old 06-21-2012, 12:09 PM
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Pilotgeek Pilotgeek is offline
Motorized Bicycle Elite Member
Join Date: Apr 2011
Location: Green Bay, WI
Posts: 403
Default Re: New engine worries ( 1st build)

Ciro, that's true, but a rich oil/fuel can actually affect the air/fuel mixture and make it lean.

Also, switching to 40:1 instead of 32:1 will help with fouling, but it may not be addressing the issues. A properly burning mixture should burn/clean the plug even at 32:1. I would've suggested possibly switching to a leaner jet and a hotter plug (but that gives a level of risk that a dealer may not want to be responsible for).
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