Thread: spark plug condition
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07-04-2007 10:48 AM #1
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spark plug condition
what does it mean when the spark plugs are covered in black carbon
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07-04-2007 12:13 PM #2
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It's running rich.Our race team page
Chuck
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07-04-2007 02:04 PM #3
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Black plugs can also be caused by stale, rotten gas.
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07-05-2007 07:47 AM #4
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Too cold of heat range will keep the plugs black too.
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