Home › Forum › Ask A Member › Evinrude 3 hp Lightwin 3012 diagnosis › Re: Evinrude 3 hp Lightwin 3012 diagnosis

#59418
Buccaneer
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    Update, I pulled the carb back off and checked the reed block.
    The reeds were seated, and not cracked.
    Took the carb back apart, and remembered one issue that
    I had with it originally, when I tried to remove the "high speed"
    nozzle. It will NOT budge. Originally I even used a little
    propane bottle torch to heat around the nozzle and it
    would not move. If I would have tried any harder I’m sure
    that I would have snapped it off. I refrained from using a
    vice grips.
    It runs "fast" okay, so I assume the high speed nozzle isn’t plugged.
    Is the "low speed" circuit sharing the high speed nozzle some how,
    or is the "low speed circuit" sucking gas from the bowl via the
    hole in the castings on the port side of the carb?
    Are the two holes in the front of the carb "bowl vents".
    I can’t find a good diagram that shows the high and low speed
    circuits.
    My homemade leather high speed nozzle boss gasket looked like
    it was sealing. Opened a new carb kit that I got yesterday,
    and it has no such gasket in it, but shows needing it on the diagram
    included !
    I had previously replace the old cork float with the one in the photo.
    The carb wasn’t flooding, so I guess it should be okay… right?

    So, I guess I’m wondering if the high speed nozzle really needs to
    come out somehow, or if anyone has "ideas"?


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