How to Set Float Level?
Install new gasket prior to making adjustment. Invert upper body assembly and, using suitable gauging tool, place gauge on CAST surface of upper body. Do not rest gauge on gasket. Measure distance from cast surface to float bottom. Bend float lever away from fuel inlet needle to decrease setting and toward to increase. Float pontoon should be parallel with gasket.
Putting pressure on the needle may cause the carburetor to flood.