Here is the product installation manual in English:

Installation Instructions for Fuel Tank Cap Assembly for Various Outboard Motors

Required Tools:

• A screwdriver (flathead and/or Phillips)
• A wrench or socket wrench (for M4.0 2T models)
• Teflon tape or pipe dope (for gasket sealing)
• A clean and dry workspace

Precautions:

• Make sure the outboard motor is in a secure and stable position before starting the installation.
• Ensure the fuel tank is empty before installing the new fuel tank cap assembly.
• Avoid touching electrical components to prevent damage.

Step 1: Remove the Old Fuel Tank Cap Assembly

1. Use a screwdriver to remove the screws holding the old fuel tank cap assembly in place.
2. Gently pull the old fuel tank cap assembly away from the fuel tank.
3. Disconnect the fuel hose from the old fuel tank cap assembly.

Step 2: Clean and Prepare the Fuel Tank

1. Clean the fuel tank and surrounding area to ensure a secure seal.
2. Apply Teflon tape or pipe dope to the threads of the new fuel tank cap assembly.

Step 3: Install the New Fuel Tank Cap Assembly

1. Place the new fuel tank cap assembly onto the fuel tank, ensuring it is properly seated.
2. Hand-tighten the screws to secure the fuel tank cap assembly in place.
3. Use a wrench or socket wrench to tighten the screws an additional 1-2 turns.

Step 4: Connect the Fuel Hose

1. Connect the fuel hose to the new fuel tank cap assembly.
2. Ensure the fuel hose is securely attached and not kinked.

Step 5: Test the Installation

1. Start the outboard motor and check for any leaks around the fuel tank cap assembly.
2. Monitor the fuel level and ensure it is not leaking.

Additional Tips:

• Regularly check and maintain the fuel tank cap assembly to ensure proper function and prevent damage.
• Store the outboard motor in a dry and secure location when not in use.

By following these steps and using the required tools, you should be able to successfully install the Fuel Tank Cap Assembly for Various Outboard Motors 2.2HP 2.5HP 3.3HP M2.5B M4.0 2T.