1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 114Get this manual
FUEL PUMP
Fuel Pump Disassembly
1Remove bolts, separate cover, pump body and pump base
a-Screws (4)-M4x30 b-Nuts (4)-M4 c-Cover d-Pump Body e-Pump Base 2Remove diaphragm, gasket, screws and check valves from pump body