When you shut it off, look down the throat & blow the smoke away. See if there is any gas running into the carb. If so you have a float or needle & seat problem. Its also posible the diaphram is ruptured or not installed correctly. They are prety flimsy. Make sure it comes off fast idle when the choke is off. Have you tried slowing it down with the idle speed screw? It could be the idle mixture screw is too lean. You usually want a little more spark adfvance from the zero mark.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum