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JSeery · 07-01-2014, 01:09 PM

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If plugs are black it is to rich (fuel mixture) or the plugs are to cold (heat range).

07-01-2014, 01:09 PM	#6
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: changing plugs every 100 miles!! Sponsored Links (Register now to hide all advertisements) If plugs are black it is to rich (fuel mixture) or the plugs are to cold (heat range).