Re: Johnson PO-15 Spark Plugs?

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October 27, 2016 at 5:17 pm #46572
Buccaneer
Participant

    US Member

    Dave, Do your plugs say D9 or 509 on them? How can they call
    them the same number if one is resistor and the other non?
    At any rate, if they work good in yours, I’ll order some. Thanks!

    Garry, I’ll measure the thread "reach" on the head to see ! Thanks.

    Prepare to be boarded!