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Old 07-13-2013, 04:58 PM
blckwlfny1 blckwlfny1 is offline
Motorized Bicycle Elite Member
Join Date: Jul 2010
Location: new york
Posts: 128
Default Re: ques about plug chop

im running a DeNardis motor, boyesen reeds, and an iridium spark plug
fuel mix is at the recommended 40:1 with Yamaha 2-stroke oil
ive idle jetted down 5-sizes and its still black
how can I tell the difference from excess oil in the fuel ratio, or a cold plug, or a rich carb?
...motor wont start without choke but starts right up with it
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