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#3 cylinder has oil

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  • #3 cylinder has oil

    When I pull the lower plug (#3)of my 1988 - 50 HP - Yahama I find that the plug is wet with oil after I have run the engine for about 1/2 hour is this because the oil injection system is adjusted to rich? The engine seems to be running very well inspite of the oil on the plug

  • #2
    are you sure it is not just extra fuel from a pin hole in fuel pump diaphragm?

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