Re: Johnson OA-55 flywheel puller bolts 1/4 – 24?

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February 18, 2018 at 9:44 pm #71264
lyks2tinkr
Participant

    US Member

    Nothing against your new mercotronic but what is the secondary resistance of the coil?

    Johnson coils are pretty robust and still throw great spark 80 years later unless it got damp.

    I have an OA55 that I restored over 10 years ago and it is a fantastic reliable runner. I haven’t had the flywheel off since then.