Fuel Delivery

The fuel delivery system begins with a 2-speed electric pump in the fuel tank. When the engine is cranking, battery voltage is applied to the pump to produce high pressure and volume, to minimize cranking times. When the engine starts, current flows through a ballast resistor, lowering pump pressure and volume and extending pump life.

Fuel flows through a pair of filters located near the tank, then on to the control pump reservoir (like a float bowl). Fuel not used returns to the tank through a regulator and check valve. A small orifice allows vapors to return to the tank when the engine is not running.