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LesH

Leaking Briggs Carburetor Problem.........

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LesH
Hi-- I have a Briggs 12.5 HP Vertical shaft engine that has the float style carburetor with the "plastic" float. (Model 289707// Type 0154 01// Code 9502044E) The problem is that it drips gas from the screw that holds on the bowl. I have had it apart 8 times. I can stop the gas flow with the bowl off and moving the float up. Here is what I have done-- << cleaned carb bowl and orfices << blew out using compressed air << the pin is in good shape << the float floats in water << replaced the needle << cleaned the brass seat with steel wool- fine grade- no nicks or burrs << added new outside washer under the screw that holds the bowl on Any help or suggestions appreciated!!!!!! I am not new to small engines and this is the first one that has done this ........ I am stumped on this one....... Thanks!!!!!!!!!!!!!!

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Chris727
Could there be a tiny hole in the bowl? I had problems with a leaky carb on my AC 710, the kohler bowl was made of aluminum or something like that and despite looking decent, when I held it up to the light there was a very tiny hole.

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