Having trouble with my old genset. It will crank and run from my remote start button in the cab while the motor is running. But as soon as I kill the engine, the generator runs for about 10-seconds and stops. I have replaced filters (both air and fuel) the fuel pump and the fuse. Still it will not run by itself. I am guessing a carburetor problem but would love to hear any other suggestions. Thanks to all in advance.