Spark Plug Service - Honda BF15D Owner's Manual

Spark Plug Service

RECOMMENDED SPARK PLUGS:
CR5EH-9 (NGK)
U16FER9 (DENSO)
Incorrect spark plugs can cause
engine damage.
1. Unlatch and remove the engine
cover (p. 69 ).
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 SPARK PLUG CAP
WRENCH
4. Inspect the spark plugs. Replace
them if the electrodes are worn, or
if the insulators are cracked or
chipped.
0.031
(0.80
SEALING
WASHER
5. Measure the spark plug electrode
gap with a suitable gauge. The gap
should be 0.031 − 0.035 inches
−
(0.80 0.90 mm).
− 0.035 in
−
0.90 mm)
77