Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 84Get this manual

FUEL PUMP Install the pump body to the pump cover with fou screws

- Pump CoverGasketPump BodyScrew (4)

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