2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 124Get this manual
FUEL SYSTEM FUEL PUMP
Assembly
Assembly is reverse order of disassembly with special attention to the following steps: When connecting the diaphragm set to piston with pinalign punch mark on the piston and the projection of diaphragm
Installation
Installation is reverse order of removal with special attention to the following steps:
IMPORTANT: Before installing fuel pump, rotate the crankshaft to bring the No1 (top cylinder) piston to Top Dead Center on compression stroke