Re: Cylinder head shocking me 1957 35hp evinrude

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February 13, 2017 at 3:34 pm #52933
aquasonic
Participant

    Wouldn’t the cylinder head always be grounded to the block by the 10 cap screws. Even if sealant is used, there should be continuity between the head and block. Somehow the spark seems to traveling on the outside of the sparkplug. Have you tried another sparkplug?

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