Spark Plug Service
Recommended spark plug: BPR5ES (NGKI
Wl GEPR-U (ND)
m Touching a hot engine or exhaust system can cause serious
burns. Let the engine cool before performing maintenance.
rrMPoRTANTNOTtCE 1 Spark plugs of the wrong heat range can cause
engine damage.
For good performance, the spark plug must be properly gapped and free of
deposits.
1. Raise the rear body.
2. Disconnect the spark plug cap, and remove any dirt from around the
spark plug area.
3. Remove the spark plug, using a spark plug wrench.
SPARK PLUG CAP
SPARK PLUG
WRENCH
4. Visually inspect the spark plug. Discard the spark plug if the electrodes
are worn, or if the insulator is cracked or chipped. Clean the spark plug
with a wire brush if it is to be reused.
5. Measure the spark plug gap with a feeler gauge. The gap should be
0.7-0.8 mm (0.028-0.031 in). Correct the gap as necessary by
carefully bending the side electrode.
0.7-0.8 mm
(0.028-0.031 in)
SIDE
ELECTRODE
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