Re: Mid 50’s Johnson 25HP runs like crap. Advice needed

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May 18, 2018 at 1:31 pm #76234
huntleybill
Participant

    Thanks Ben: I have replaced the plugs with no luck. The coils, points, condensers and wires are new. But that does not mean they are good. I was going to start re-replacing the ignition parts next.

    Just to clarify, how would checking behind the exhaust cover reveal water? Wouldn’t the hot exhaust blow out or dry out any evidence if that were the case? Also, since compression is 110 on both cylinders, would that not rule out any cracks, blown gaskets, leaks etc?