Spark plug gap

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  • March 23, 2021 at 8:59 am #234691
    yooperrigged
    Participant

      US Member

      Hello,
      Does anyone know the correct spark plug gap for a Johnson 1.5 hp Model SC 10 S? Thanks in advance.

      March 23, 2021 at 9:06 am #234693
      Don
      Participant

        US Member

        J6C plug gapped at .030″. I’m assuming this is a 1968-70 Johnson 1.5hp, dark green color…

        March 23, 2021 at 9:31 am #234699
        yooperrigged
        Participant

          US Member

          Thank you Fleetwin. Indeed it is a 1968.

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