Spark Plug Service - Honda BF5A Owner's Manual

Spark Plug Service

RECOMMENDED SPARK PLUGS:
BPR5ES (NGK)
W16EPR-U (DENSO)
Incorrect spark plug can cause
engine damage.
SPARK PLUG WRENCH
1. Unlock and remove the engine
cover (p. 43 ).
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.
SERVICING YOUR OUTBOARD MOTOR
New plug Plug needing
replacement
4. Inspect the spark plug. Replace it
if the electrode is worn, or if the
insulator is cracked or chipped.
SIDE ELECTRODE
0.028 0.031 in
(0.7 0.8 mm)
SEALING WASHER
INSULATOR
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:
0.028 0.031 in (0.7 0.8 mm)
49