whats the proper setting for the air fuel screw on the carb.also engine bogs out,and stalls out after full throttle,.engine also revs with choke on and continues running high rpm's thanks guys
Recall 2 1/2 out on carb. Sounds as though you need to pull the carbes, blow them all out, pull the jets, clean all with ether (starting fluid) and gas, use high pressur air to blow them out. Sounds like you got gummy carbs.