You can do a fuel delivery check on the pump by idleing the motor for a couple minutes, then shutting it down. This is only to fill the carb bowl. Disconnect the line to the carb and attach a hose with a pressure gauge. Start it up and read the gauge. Shut it off again right away, pull the gauge out of the hose and poke the hose into a small jug. A 1-quart oil bottle works fine. Start the engine again and run it until the fuel in the carb runs out and it stalls, or until the jug is close to full. Either way, watch how long it takes to stall or to pump out 1 pint of gas.
The fuel pump should move at least 1 pint in 15 seconds, and the gauge should have read around 4 to 5 psi. If the delivery is low, then it's a bad pump or look for air leaks in the hoses before the pump (this goes all the way back to the tanks). If you have a filter before the pump, take it out and throw it away. NEVER put filters before the pump, only after. If the pressure is less than about 3 psi, replace the pump.
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David
newbie #4153
