Ok I have this 1992 Quadrunner 4x4 that is about to drive me nutz. I rebuilt the carburetor because the needle valve was letting gas drain thru to the crank case. Rebuilding the Carb seemed to take care of the gas drainage problem, but after the motor warms up it starts cutting out and seems to have black smoke coming out the exhaust like it is getting too much gasoline and flooding out. It starts missing when you finally get it started. It has about 1650 on the odometer. I know it is a 4 stroke and there are valves involved, and I was wondering if that might have to do with anything. I refuse to take it to a dealer and get put over a barrel with all their fees and "expertise".. SO I'm up for any other ideas...
Yes I changed the oil.
St3v300
