Description & Operation
The electric fuel pump used on carbureted models is an electromatic plunger type pump. The fuel pump on fuel injected models is a pin and roller type electric pump.
The plunger type pump is designed to relieve pressure at 2.6-3.3 psi (.18-.23 kg/cm2 ). The pin and roller type pump is equipped with an integral relief valve which is designed to relieve pressure at 61-71 psi (4.3-5.0 kg/cm2 ).
A fuel damper is mounted on the end of the pump to reduce changes in the fuel pressure generated in the system. All pumps are mounted in front of fuel tank. The fuel pump is actuated when the ignition switch is in the "START" or "ON" position. A check valve, located on the fuel pump outlet, prevents fuel from returning to the fuel tank when the engine is turned off.