HONDA V45 TECHNICAL FEATURES FUEL PUMP (V45 MAGNA) SWITCH GENERAL INLET DIAPHRAGM VALVES The fuel system uses an electric fuel pump to feed fuel from the fuel tank under the seat to the carburetors. It consists of an electromagnet, an armature, a pair of contacts, a diaphragm and a pair of valves; an inlet and an outlet. OPERATION When the key is turned on, the electromagnet is energized, pulling the armature up. This stretches the diaghragm and forms a vacuum sucking fuel in through the inlet check valve. As the armature is pulled further, the contact points are opened, breaking the circuit to the electromagnet. The diaphragm is returned to its original position with a return spring. Fuel is then forced out of the outlet check valve and into the carburetors. Date of Issue: May, 1982 0 HONDA MOTOR CO., LTD 357 23-9