Spark Plugs - Honda BF25A Owner's Manual

11. MAINTENANCE
Gear Oil Change
1. Position the outboard motor verti-
cally.
2. Remove the level plug and drain
plug to drain the oil Inject oil
through the drain plug hole until it
starts flowing out through the level
plug hole. Use new sealing washers
and reinstall the level plug first and
then the drain plug securely.
OIL CAPACITY:
0.33 US qt (0.291,0.26 Imp qt)
Spark Plugs
To ensure proper engine operation, the
spark plugs must be properly gapped
and free of deposits.
Check-Adjust interval:
Every 100 hours or 6 months.
Replace interval:
Every 200 hours or 1 year.
(Refer to the maintenance schedule
page 76).
Recommended spark plug:
DR7EA (NGK),
X22ESR-U (DENSO)
Use only the recommended spark
plugs or equivalent.
-1 Spark plugs which have an
improper heat range may cause engine
damage.
1. Allow the engine to cool. The spark
plugs will be hot if the engine has
been running.
2.
Remove the engine cover.
PLUG CAPS WRENCH
3. Disconnect the spark plug caps
from the spark plugs.
4.
Use the wrench and screwdriver
supplied in the tool kit to remove
the spark plugs.
5. Check the spark plugs. Replace the
spark plugs if there is apparent
wear, or if the insulators are
cracked or chipped. Clean the spark
plugs with a wire brush if they are
to be reused.
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