Product Installation Instructions for Fuel Pump Replacement Compatible with Mercury Marine Outboards 150-250 HP Models

Tools Required:

1. Socket Set (including 10mm, 13mm, and 17mm sockets)
   2.Wrench Set
2. Screwdriver Set (flathead and Phillips)
3. Pliers
4. Fuel Line Disconnect Tool
5. Torque Wrench
6. Shop Towels or Rags
7. Safety Goggles
   9.Gloves

Installation Steps:

1. Preparation:

   • Ensure the outboard motor is turned off and is cooled down.
   • Disconnect the battery to prevent any electrical hazards.
   • Gather all required tools and prepare a clean workspace.

2. Access the Fuel Pump:

   • Remove any engine covers or panels that obstruct access to the fuel pump.
   • Take note of the orientation and connections of the existing fuel pump for reference when installing the new one.

3. Remove the Old Fuel Pump:

   • Disconnect the fuel lines using the fuel line disconnect tool, being careful to catch any fuel in shop towels.
   • Remove the electrical connectors from the old fuel pump.
   • Unbolt the old fuel pump using the socket set and carefully remove it from the mounting area.

4. Install the New Fuel Pump:

   • Position the new fuel pump in place, referring to your notes from the old pump.
   • Secure the fuel pump with bolts and use a torque wrench to tighten to the manufacturer’s specifications.
   • Reconnect the electrical connectors and ensure they are secure.

5. Reconnect the Fuel Lines:

   • Connect the fuel lines to the new pump, ensuring they are firmly secured to prevent leaks.

6. Final Checks:

   • Review all connections to ensure everything is properly attached and secure.
   • Reinstall any engine covers or panels that were removed.

7. Reconnect the Battery:

   • Reconnect the battery and ensure connections are tight and secure.

8. Testing:

   • Turn the ignition key to the ON position (do not start the engine) and allow the electric fuel pump to prime.
   • Check for any leaks around the fuel pump and lines.
   • Start the engine and monitor its performance to ensure the new fuel pump is functioning correctly.

Safety Tips:

• Always wear safety goggles and gloves during installation.
• Work in a well-ventilated area to avoid any inhalation of fumes.
• Dispose of any old fuel and materials in accordance with local regulations.

By following these instructions, the fuel pump replacement can be effectively completed, ensuring enhanced performance of your Mercury Marine Outboard engine.