Spark Plug Service - Honda Marine BF2.3D Owner's Manual

Spark Plug Service

RECOMMENDED SPARK PLUG:
CR4HSB (NGK)
U14FSR-UB (DENSO)
Incorrect spark plug can cause
engine damage.
SPARK PLUG WRENCH
1. Remove the engine cover (p.
2. Disconnect the spark plug cap
from the spark plug.
3. Remove the spark plug with a
spark plug wrench and screwdriver
supplied in the tool kit.
New plug
4. Inspect the spark plug. Replace it
if the electrode is worn, or if the
insulator is cracked or chipped.
43 ).
SERVICING YOUR OUTBOARD MOTOR
0.024
Plug needing
(0.6
replacement
SEALING
WASHER
INSULATOR
5.
SIDE ELECTRODE
0.028 in
0.7 mm)
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
(0.6 0.7 mm)
47