Honda BF5A Owner's Manual page 75

MAINTENANCE
4. Change the engine oil (see page
61 ). If there was water in the
engine crankcase, or if the used
engine oil showed signs of water
contamination, then a second
engine oil change should be
performed after running the engine
for 1/2 hour.
5. Pour a teaspoon of engine oil into
the spark plug hole, then pull the
starter rope several times to
lubricate the inside of the cylinder.
Reinstall the spark plug.
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6. Attempt to start the engine.
Exposed moving parts can
cause injury. Use extreme care
when installing the engine
cover. Do not operate the
outboard motor without the
engine cover.
If the engine fails to start, remove
the spark plug, clean and dry the
electrode, then reinstall the spark
plug and attempt to start the engine
again.
If the engine starts, and no
mechanical damage is evident,
continue to run the engine for 1/2
hour or longer (be sure the water
level is at least 4 inches above the
anticavitation plate).
7. As soon as possible, take the motor
to a Honda outboard motor dealer
for inspection and service.