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59
Maintenance
Spark plug
Checking Spark Plug
For the recommended spark plug, see
“ Specifications.”
P.
113
Use only the recommended type of spark
plug in the recommended heat range.
NOTICE
Using spark plugs with an improper heat range can
cause engine damage.
1. Remove the shroud.
P.50
2. Disconnect the spark plug cap.
a
Take care to avoid damaging the spark
plug wire when disconnecting the cap.
3. Clean any dirt from around the spark
plug base.
4. Remove the spark plug using the spark
plug wrench.
5. Inspect the electrodes and centre
porcelain for deposits, erosion or carbon
fouling.
a
If the erosion or deposit is heavy,
replace the plug
a
C
lean a carbon or wet-fouled plug
with a plug cleaner, otherwise use a
wire brush.
6. Check the spark plug gap using a wire-
type feeler gauge.
a
If adjustment is necessary, bend the
side e
lectrode carefully.
The gap should be:
0.031 to 0.035 in (0.80 to 0.90 mm)
continued
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