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85 evinrude 35hp misfiring or hesitating

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  • 85 evinrude 35hp misfiring or hesitating

    I have a 1984 35hp evinrude. It runs great with one exception. At full throttle, the motor "hiccups" or hesitates briefly every 10 seconds. As you can guess, at half throttle, it hesitates every 20 seconds. Any ideas where to start ? Thanks for the help.
    Last edited by jcygnar27; 05-29-2012, 01:13 AM.

  • #2
    Would have check spark with a timing light at point where it's missing to see if misfiring on one cylinder.
    Regards
    Boats.net
    Evinrude Outboard Parts

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    • #3
      I can only get the motor to 'misfire' while in gear, under a load in the water!!! Can not check it on trailer even in gear......

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      • #4
        You may need to purchase an inline spark tester and have someone drive while you inspect.
        Regards
        Boats.net
        Evinrude Outboard Parts

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        • #5
          I have an 83 with the same issue. My motor hesitates about every 5 or 6 seconds. I have had it in quite a few shops and no one has been able to fix it. Any other ideas? Jcygnar27 did you get your motor fixed?

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