Re: 40hp Johnson 1963 Carb Question

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October 19, 2015 at 4:40 am #25737
twsnagel
Participant

    OK, a new theory: The reason it will only work when it’s not choked is that the idle circuit is completely clogged. The idle jet is the only one that gets air when the butterfly is closed, when the choke is open there’s enough air to sometimes make up for the massive amount of gas coming up the high speed jet. Right? Right?

    I have a feeling that welch/core plug needs to come out of the top of the carb to get it clean. It seems scary to get out.