Spark Plugs - Honda BF75D Owner's Manual

MAINTENANCE

Spark Plugs

To ensure proper engine operation,
the spark plug must be properly
gapped and free of deposits.
The spark plug becomes very
hot during operation and will
remain hot for a while after
stopping the engine. Allow the
engine to cool before servicing
the spark plug.
122
Check interval:
Every 200 hours or 12 months.
Replace interval:
Every 400 hours or 2 years
Recommended spark plug:
IZFR6K-11E (NGK)
Use only the recommended spark
plugs or equivalent. Spark plugs
which have an improper heat
range may cause engine damage.
This outboard motor uses spark plugs
that have an iridium coated center
electrode. Be sure to observe the
following when servicing the spark
plugs.
Do not clean the spark plugs. If an
electrode is contaminated with
accumulated objects or dirt,
replace the spark plug with a new
one.
The cleaning of the iridium spark
plugs consult with an authorized
Honda outboard motor dealer,
unless the owner has the proper
tools and is mechanically
proficient.
Use only a ''wire-type feeler
gauge'' to check the spark plug
gap if necessary. To prevent
damaging the iridium coating of
the center electrode, never use a
''leaf-type feeler gauge.''
Do not adjust the spark plug gap.
If the gap is out of specification,
replace the spark plug with a new
one.