2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 123Get this manual

FUEL SYSTEM FUEL PUMP Remove the following parts: Piston Pin Pump body Spring Diaphragm Spring

Inspection
Inspect the fuel pump check valvesIf tears, distortion, or damage is found, replace the fuel pump

Piston Pin Pump body Spring Diaphragm Spring

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives