Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Have you removed the float bowl on the carburetor and checked the bowl for debris, and the flow of fule through the needle valve passage from the fuel tank?
With bowl removed, crank engine, so fule pump is working, and see if fuel comes through the needle passage. Have spark plug wire off, so engine does not try to start. You should get a steady flow of fuel. If not remove the line coming to carb and test the fuel from pump.
Gravity fule flow, blow back into the tank to clear the line. There has to be blockage at the tank.
No fuel from tank into the float bowl? Sounds to me the needle valve passage is plugged, with debris or the seat is plugged.If it has an all metal needle valve,it will have a rubber seat in the upper needle valve passage, which can swell and plug the passage or restrict it!
Lack of fuel getting through the carburetor. Either flow through the needle is insufficient, or the carburetor jets are plugged.