HONDA marine BF2.3DH, Owner'S Manual

Page: 50 / 95

48
SERVICING YOUR OUTBOARD MOTOR
Spark Plug Service
RECOMMENDED SPARK PLUG:
LR4C-E (NGK)
Incorrect spark plug can cause
engine damage.
1. Remove the engine cover (p. 42).
2. Disconnect the spark plug cap from
the spark plug.
3. Make sure the engine is cool.
Remove the spark plug with the
spark plug wrench and screwdriver
provided in the tool.
4. Inspect the spark plug. Replace it if
the electrode is worn, or if the
insulator is cracked or chipped.
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
(0.6 – 0.7 mm)
SPARK PLUG WRENCH
New plug Plug needing
replacement
SIDE ELECTRODE
0.024 – 0.028 in
(0.6 – 0.7 mm)
SEALING
WASHER
INSULATOR