Reply To: 1975 Johnson 15R75C 15 hp

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August 22, 2025 at 6:08 pm #299196
Don
Participant

    US Member

    OK, so the engine doesn’t actually stall out due to lack of fuel.   Did you pump the primer bulb at WOT?  If so, did it help?

    I’m assuming the engine is running on two cylinders.  Did you check the linkage?  Perhaps the linkage/tiller handle is meeded up and the mag plate isn’t advancing all the way.  Perhaps the linkage is messed up and the carb isn’t opening all the way…