−
−
−
Make sure the plug washer is in good
condition.
With the plug washer attached, thread
the spark plug in by hand to prevent
cross-threading.
Tighten a new spark plug 1/2 turn with a
spark plug wrench to compress the
washer. If you are reusing a plug, it
should only take 1/8
1/4 turn after the
plug seats.
Reinstall the spark plug caps.
The spark plug must be securely tightened.
An improperly tightened plug can become
very hot and possibly damage the engine.
Check the spark plug gap (
) using a
wire-type feeler gauge. If adjustment is
necessary, bend the side electrode (
)
carefully.
The gap should be:
Inspect the electrodes and center
porcelain for deposits, erosion or carbon
fouling. If the erosion or deposit is heavy,
replace the plug. Clean a carbon or wet-
fouled plug with a plug cleaner, otherwise
use a wire brush.
2
3
(2)
(3)
7.
8.
9.
10.
11.
12.
(2) Spark plug gap
(3) Side electrode
76
0.8
0.9 mm (0.03
0.04 in)
03/06/03 12:58:04 32MCB600_086
