tore the carb apart so many times to see if i could find something sticking, the float and cant find anything that appears to be sticking. this set up worked fine for over two years with no problems and now the last year, crap. took it into a garage to see if they could figure out, and they made it worse. the carb was [censored] gas all over the place, and i had to fix it. some help. somebody else told me that all three things, the fuel pump, carb and tank all have to be vented, have no clue where the carb is suppose to venting from and even if it has a place to vent. Its already an aftermarket carb from napa.