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11/05/07 10:12:47 32KVCC00_088
3.
Visually inspect the spark plug electrodes
for wear. The center electrode should
have square edges and the side electrode
should not be eroded.
Discard the spark plug if there is
apparent wear or if the insulator is
cracked or chipped.
4.
Check the spark plug gap (
wire-type feeler gauge. If adjustment is
necessary, bend the side electrode (
carefully.
The gap should be:
0.80 0.90 mm (0.031 0.035 in)
(4)
(3) Spark plug gap
(4) Side electrode
78
5.
Make sure the plug washer is in good
condition.
6.
With the plug washer attached, thread
the spark plug in by hand to prevent
cross-threading.
7.
Tighten the spark plug:
If the old plug is good:
3
) using a
If installing a new plug, tighten it twice
4
)
to prevent loosening:
a)
b)
c)
(3)
An improperly tightened spark plug can
damage the engine. If a plug is too loose, a
piston may be damaged. If a plug is too tight,
the threads may be damaged.
8.
Reinstall the spark plug cap. Take care
to avoid pinching any cables or wires.
1/8 turn after it seats.
First, tighten the plug:
NGK:
1/2
turn after it seats.
Then loosen the plug.
Next, tighten the plug again:
1/8 turn after it seats.
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