Reply To: ‘55 Johnson 3 hp won’t fire

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May 22, 2025 at 9:54 pm #296647
Don
Participant

    US Member

    OK, reread the post.  Good ignition and carb.  Won’t run at all, only popped a few times.  Compression seems good.  Any chance both the reeds are messed up?  Perhaps the gaskets are mixed up?  Possible blocked exhaust?

    This engine doesn’t have upper and lower seals, so an issue in this area seems very unlikely.   Does it look like the engine has been apart?  Signs of the crankcase being split before?   When was the last time this engine ran?