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How do I know if I'm running too lean or rich?
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09-10-2016, 10:25 AM
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4
bull
Join Date: Feb 2015
Posts: 257
i have no idea 'where' the cone AF came from.
The ceramic color:
original- white
lean - white or almost white
proper - tan
rich - black
a proper running engine will take an overly rich plug and clean it to tan within about 500 miles of driving.
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