Reply To: ‘55 Johnson 3 hp won’t fire

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May 21, 2025 at 5:20 pm #296601
JACQUES
Participant

    when you say won’t fire….. do you mean  will not generate SPARKS    or    simply will not ignite fuel

    crankcase  vacum leak aside the carbs are easy to service and to start a critical area to check is the very narrow side channel that routes fuel from the bowl to the chamber under the welch plug.    make certain the idle screwpoint has not snapped off and blocks fuel  circulation

    Shot for  fuel in the carb face will confirm the carb is NOT passing fuel up the side channel anddown the 3 small holes under the welch plug

    https://www.youtube.com/watch?v=MfTpU6HS4cA

    Joining AOMCI has priviledges 🙂