Spark Plug Service - Honda BF5A Owner's Manual

Spark Plug Service

To ensure proper engine operation,
the spark plug must be properly
gapped and free of deposits.
The spark plug becomes very
hot during operation and will
remain hot to awhile after
stopping the engine.
Check-Adjust interval:
Every 100 operating hours or 6
months.
Replace interval:
Every 200 operating hours or every
year.
Recommended spark plug:
BPR5ES (NGK)
W16EPR-U (DENSO)
Use only the recommended spark
plugs or equivalent. Spark plugs
which have an improper heat
range may cause engine damage.
SPARK PLUG WRENCH
1. Remove the engine cover.
2. Remove the spark plug cap.
Use the wrench and screwdriver
3.
supplied in the tool kit to remove
the spark plug.
4. Visually inspect the spark plug.
Discard the spark plug if there is
apparent wear, or if the insulator is
cracked or chipped. Clean the
spark plug with a wire brush if it is
to be reused.
MAINTENANCE
−
0.7
(0.028
5. Measure the plug gap with a feeler
gauge.
The gap should be 0.7 0.8 mm
(0.028 0.031 in). Correct as −
necessary by carefully bending the
side electrode.
0.8 mm
− 0.031 in)
−
65