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25
0.6
– 0.7mm
SPARK PLUG
CAUTION
ALWAYS
allow the engine to cool down before removing the spark plug.
NOTE
ALWAYS
replace the spark plug with the same model. Incorrect spark plug
installation can cause serious engine damage.
DO NOT
allow dirt or debris to enter the cylinder bore.
6.6
Unplug the spark plug HT Lead cap to expose the spark plug.
6.7
Using the plug wrench provided, unscrew the spark plug in an anti-clockwise
direction.
6.8
Inspect the spark plug and washer for wear and damage.
If the spark plug or washer is worn or damaged, you
MUST
replace it with a new
one.
6.9
Remove carbon deposits from the spark plug using a soft wire brush.
6.10
The spark plug gap should be 0.6
– 0.7mm.
Check the gap using a feeler gauge and adjust as necessary by carefully bending
the side electrode to achieve the correct gap.
6.11
Refit the cleaned and adjusted spark plug by hand to avoid cross-threading.
6.12
Once the spark plug seats, tighten with the spark plug wrench.
DO NOT
overtighten.
6.13
Re-attach the spark plug HT lead cap.