Re: Johnson PO-15 Magneto

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October 26, 2016 at 12:59 am #46477
George Emmanuel
Participant

    US Member

    For some reason I’ve seen PO coils with two different readings on the secondary. Normally you see a reading of around 7-9 but there were some coils with higher readings close to 20. Maybe someone can enlighten me as to why? Anyway, the concern is whether you get a good hot spark.