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    Spark Plug Analysis

    I have a 1993 Mercruiser 3.0 XL with Digital Electronic Ignition. Pulled the plugs last evening and found the following: Plug 1 was black and sooty with some small deposits around the base of the plug and the adjustable electrode was clean but black. Plug 2 was not as sooty, but insulator...
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    Engine Miss Fire

    I have a 1993 Mercruiser 3.0 XL that seems to be running on 3 cylinders when first started. After it has run of three or four minutes, it picks up the fourth cylinder. Is this likely a fuel delivery problem or a spark problem? Also, the engine idles fairly smoothly at 1000 rpms, but when I...
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    Carb from CarbCareUSA

    Has anyone got any experience with a rebuilt carburator from CarbCareUSA in California? ..... thanks in advance....
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    Ethanol and Fiberglass Fuel Tanks

    This morning I was told by my local Mercruiser dealer that there is significant data showing that ethanol attacks the resin in fiberglass fuel tanks, and that failure can only be prevented by replacing the tank with a metal tank. One of the articles he showed me said that the problem was...
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    Mercruiser 3.0LX Carburetor

    I have a 1993 3.0LX Mercruiser. The web that spans the throat of my carburetor that holds the threaded rod that fastens the spark arrestor to the carb has broken totally free (both ends and the center connection). Has anyone found a successful repair, or is replacing the carburetor the only...
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