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    89 3ltr omc ignition problem

    I have a 3ltr that has given me trouble this summer.I finally thought I had it running good ,Last 4 or 5 times out trolled all day no problem,Last couple times out noticed a squeeking noise from distributor ,took it apart today and noticed that one off the centrifugal advance arms(I dont now the...
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    7.5 merc no spark

    I have a 79 merc 7.5 .No spark .Ran good last summer this year nothin.Is there a way to test the black box?.Or the magneto's.With a meter .
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    1989 omc 3 ltr fouling plugs

    My 3 litre omc keeps fouling plugs while trolling at 500to 100 rpm.I know it is running to rich and have adjusted the carb to specs.Put in a new carb kit but it still does it.could this be the jets in the carb?or the power valve?It used to troll all day no problem ,but this year it won't.Any ideas?:
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