Reply To: Shaking at High RPM Running 1955 Evinrude Fleetwin Aquasonic 7.5HP

Home › Forum › Ask A Member › Shaking at High RPM Running 1955 Evinrude Fleetwin Aquasonic 7.5HP › Reply To: Shaking at High RPM Running 1955 Evinrude Fleetwin Aquasonic 7.5HP

October 11, 2019 at 6:50 pm #185086
garry-in-michigan
Participant

    The newer prop incorporates a “fishline cutter” which must be trimmed when used on the earlier motors. That violent bucking sounds more like a worn clutch dog. Check for a bent 303340 shift lever in the lower unit.