Its really gotta be the carb, the only other thing would be a plugged air filter (doubtful). Is the running rich, fouling plugs a recent development?
Couple other checks: Choke is wide open when warmed up; No fuel dripping in primary or secondary barrels at idle; Air bleeds clean.
Dean
Couple other checks: Choke is wide open when warmed up; No fuel dripping in primary or secondary barrels at idle; Air bleeds clean.
Dean
