Re: 1963 Johnson RX11-A 28HP

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May 30, 2015 at 11:49 pm #17238
chris-p
Participant

    have you looked at the ignition? Pulled flywheel?

    Cracked coils will give a nice blue spark as well if you hold the plugs to the block, so could dirty points. Just a thought.

    I always pop the flywheel and give everything the once over. Polish the points, set at 020 or use timing fixture if you have one. Then clean with business card or paper stock dipped in acetone.