Honda Outboard Motor BF5A Owner's Manual page 36

Fuel Filter Replacement
The fuel filter is located between the fuel pump and the carburetor. Water
or sediment accumulated in the fuel filter can cause loss of power or hard
starting. To prevent engine malfunction, replace the fuel filter regularly.
((SERVICE PERIOD)) Every 200 operating hours or every one year.
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Gasoline is flammable and is 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.
. 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 filter.
NOTE: Before removing the filter, place clamps on the fuel tubes on
'each side of the filter to prevent fuel leakage.
3. Install the new fuel filter with the arrow mark pointing toward the
carburetor.
NOTE: Fuel flow will be impeded if the filter is installed backward.
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