Spark Plug Service - Honda Marine BF75A Owner's Manual

Spark Plug Service

RECOMMENDED SPARK PLUGS:
DR7EA (NGK)
X22ESR-U (DENSO)
Incorrect spark plugs can cause
engine damage.
1. Unlock and remove the engine
cover (p. 74 ).
2. Disconnect the spark plug caps
from the spark plugs.
3. Remove the spark plugs with a
spark plug wrench.
SERVICING YOUR OUTBOARD MOTOR
SPARK PLUG
WRENCH
4. Inspect the spark plugs. Replace
them if the electrodes are worn, or
if the insulators are cracked or
chipped.
SIDE ELECTRODE
0.024
(0.60
SEALING
WASHER
5. Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
carefully bending the side
electrode.
The gap should be:
0.024 0.028 in
(0.60 0.70 mm)
0.028 in
0.70 mm)
83