Re: 1976 Johnson 35HP magneto problem

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September 17, 2016 at 2:02 pm #44172
Don
Participant

    US Member

    Well, back in the day, the UL81J plug was the final recommendation for the low tension ignition models, the current Champion plug is the UL81C. I don’t ever recall seeing arcing issues using these plugs, so I am thinking there was some unique issues/problems with this poster’s coils/plug boots.