Re: 1956 Johnson 10hp bogging under throttle

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September 11, 2016 at 12:46 am #43761
frankr
Participant

    Reading your story again, I don’t see any mention of having checked the ignition system. Your statement about sputtering and dies, then pulling it 15 pulls when warm is the classic symptom of bad coils. Unless they have already been replaced, ALL 1956 Johnsons have bad (cracked) coils.