09-03-2012, 09:15 PM
Clarke, correct me if I am wrong, but I think both the Start/Stop switch and the Fuel Pump On/Off switch are for the engine. The Fuel Pump switch allows you to build up pressure before you use the start switch to turn the engine over. The Stop switch closes a solenoid that blocks the flow of fuel to the engine just like the Generator Stop switch does. To stop the engine, you must hold the Start/Stop switch in the Stop position until the engine dies.