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2007 90 Optimax Rough Idle

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  • 2007 90 Optimax Rough Idle

    2007 90 Hp Optimax

    Idles rough then dies within 5-10 seconds, restarts right back up with same results.
    Fuel Pressure-110 lbs
    Air Pressure-90 lbs
    Has great spark and compression is 125 lbs on all 3 cylinders
    Spark Plugs look wet

    Any ideas???

    Mark

  • #2
    Fuel pressure should not be 110, there should only be a 10 psi difference in air and fuel. Either 80/90 or 100/110, possibly fuel pressure regulator, also make certain you have the correct spark plug.

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