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#15577
Mumbles
Participant

    Although it doesn’t seem to make any difference, the 439071 carb kit comes with a 396521 (765555) float valve while the diagrams at Marine Engine call for a 396522 (765561) float valve for this carb. I’m not sure what the differences are.

    http://www.marineengine.com/parts/johns … etor+Group

    On one carb I had which leaked like yours, the seat was too long and bottomed out on the carb body causing a major leak. It took two or three sealing washers and some serious adjusting of the float to get it working right until it could be replaced with a correct part. Just something to consider.