So..... when it's warm/hot it all stops.........first of all that's weird, When you shut it off and wait 3 minutes, does it start nice and run nice? It may be an old tired fuel pump getting itself "primed" and pressurized from engine RPM. Chances are there are two things wrong, like a carb that needs rebuild or like the guys are saying vacuum leak at some gasket or carb part that swells after starting. Or carb bowl leaking down (maybe bad needle valve seat)and weak pump takes too much time to refill. To sputter and backfire, then run good, isn't a usual occurrence. Visibly check what your choke is doing when you move the knob.(take off the air cleaner) Sometimes the cable operated butterfly will open or not open and close and not close and you are choking when you think your not and visa versa. Make sure the plug wires are on the correct plugs, etc. You/we will find it if you do the necessary work and experimentation. Bartamos
Last edited by bartamos; 05/30/2010 5:32 AM.