Reply To: KA 37 spark plugs

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August 7, 2025 at 1:40 pm #298780
David Bartlett
Participant

    US Member

    I have used Champion D-9, or NGK A-6 plugs with good results. I have a couple motors with the 2 piece plugs in them and they run just fine. I would rather have an old plug in an old motor.

     

    David Bartlett
    Pine Tree Boating Club Chapter

    "I don't fully understand everything I know!"