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  1. #1
    Join Date
    Dec 1969
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    Motor doesn't run well at slow speed

    Got a 60 HP Mariner that started running rough at low speed (Upto 2800 RPMs), also idles so rough I had to set the idle up to keep it running. Put new plugs in and ran some Marine cleaner through it but no change. Any ideas?

  2. #2
    Join Date
    Dec 1969
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    ky
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    Re: Motor doesn't run well at slow speed

    take the plugs out and have someone crank over the engine and see if all the cyleneders are firing,you may have a coil that isn't firing at slow speeds.

  3. #3
    Join Date
    Dec 1969
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    Re: Motor doesn't run well at slow speed

    Thanks, I should be able to get it in the shop by next week. Bad time of year to have a problem.

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