Honda BF75 Owner's Manual page 35

Fuel strainer replacement
The fuel strainer is located between the fuel pump and the carburetor. Water
or sediment accumulated in the fuel strainer can cause loss of power or hard
starting. To prevent engine malfuction, replace the fuel strainer regularly.
((SERVICE PERIOD)) Every 200 operating hours or every one year.
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Gasoline is flammable and explosive under certain conditions. Do not
smoke or allow flames or sparks near the outboard motor while draining
fuel.
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Always work in a well-ventilated area.
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Be sure that any fuel drained from the outboard motor is stored in a safe
container.
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Wipe up any spilled gasoline at once.
1. Disconnect the fuel tank line from the motor.
2. Remove the engine cover, and remove the fuel strainer.
NOTE: Before removing the strainer, place clamps on the fuel tubes on
each side of the strainer to prevent fuel leakage.
3. Install the new fuel strainer with the arrow mark pointing toward the
carburetor.
NOTE: Fuel flow will be impeded if the strainer is installed backward.
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