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  1. June 10th, 2010, 09:51 PM #1
    bknight
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    Question Surging Problems with 1987 125hp Force

    Has weak fire on upper 2 coils. Surges when running. I have checked the compression and the spark on the plugs. Can anyone help me diagnose this problem?
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  2. June 10th, 2010, 11:38 PM #2
    foodfisher
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    Default Re: Surging Problems with 1987 125hp Force

    Surging indicates a fuel supply problem. Start there.
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  3. June 11th, 2010, 06:24 AM #3
    jerryjerry05
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    Default Re: Surging Problems with 1987 125hp Force

    Clogged vent line or a bad diaphram in the pump.Maybe a bad squeezie.J
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  4. June 11th, 2010, 10:31 AM #4
    bknight
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    Default Re: Surging Problems with 1987 125hp Force

    This could cause the firing on upper coils to be weak?
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  5. June 11th, 2010, 11:05 AM #5
    foodfisher
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    Default Re: Surging Problems with 1987 125hp Force

    Fuel and fire. Two seperate systems.
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