Re: 1966 Johnson 20 Stumbles, Won’t Idle

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July 29, 2017 at 12:24 am #62348
Don
Participant

    US Member

    Hmmmm. Perhaps the fuel pump is leaking into the crankcase/cylinder causing his ultra high compression complaint…..Pull the fuel hose off while the engine is messing up at idle, check the fuel pump for leakage if the engine seems to clean up a bit after running for several seconds…