i recently had this same problem,i set my float to .825 and it still leaked.so i took the bowl off and hooked the fuel line to the carb and turned the gas on and pushed the float up to close the valve and it still leaked.so i took an old float valve a had left over from my rebuild ,put it in and no more leaks,maybe you have the same problem.i bought my rebuild kit from napa,maybe its a cheap kit or something!