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    7.4 MPI Burning Rich?

    Good day to all, I have a 1999 260 Sundancer with a single Mercruiser 7.4L MPI/ Bravo 3 that is fouling up four spark plugs. The cylinders that are showing fouled spark plugs are #s 2,4,6 and 8. The fouled spark plugs all look the same (matte black with very minimal oil residue). The odd...
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