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Re: Spark plug colors, what do they mean?
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Posted by Tom V on April 16, 1999 at 15:26:08:
In Reply to: Spark plug colors, what do they mean? posted by Robert J Spence on April 16, 1999 at 14:00:25:
Hi Bob: If only No. 1 Plug is sooty and black, that pretty much isolates the problem for you. It could just be a bad plug- I would first just replace that plug and then see if that plug gets fouled.
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