Re: 1976 Johnson 35HP magneto problem

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August 8, 2016 at 5:59 pm #41767
Don
Participant

    US Member

    Do you still have the original coils? If so, I would test and try them instead. Perhaps there is a problem with the plug(s) causing the spark to seek an alternate path to ground. The correct Champion plug is the UL81C gapped at .030".