Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 79Get this manual
FUEL PUMP
Fuel Pump
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TORQUE DESCRIPTION PUMP COVER STOPCHECK VALVE (CLEAR PLASTIC) CHECK VALVE PLATE SCREW GASKET DIAPHRAGM SPRING PUMP BODY SCREW (M3x5) SPRING PLUNGER O-RING SEAL HOSE CLAMP OUTLET HOSE INLET HOSE FILTER FUEL CONNECTOR SCR EW 70 8