Reply To: 1965 3hp evinrude won’t stay running

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June 19, 2021 at 12:53 pm #240625
Mumbles
Participant

    Check the butterfly shaft bearing area on the carb for wear. Air leaking in here can cause all kinds of issues. The passageway in the carbs bowl has to be clear to. It runs from the bottom of the bowl, behind the main jet, up the carb body and can be plugged. No crank seals on these motors. The oil in the 16:1 fuel mix does the sealing.