Home Forum Ask A Member Champion C7 spark plug substitute

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  • #238042
    opposedtwin
    Participant

      US Member

      Can anybody remnd me of the substitute for the really old (really big) Chamion C7 spark plugs that were standard for a lot of the motors from the 20s and 30s? I want to say Champion D9 or D16 but I don’t recall specifics. Been dealing mostly with 50s era motors for many years now but am trying to get spark in a 1938 Thor with a Bosch magneto.

      Thanks for any help/suggestions!
      Scott

      #238049
      stanley
      Participant

        US Member

        D16

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