11. MAINTENANCE
: 0.0244028 in
(0.6-0.7
mm)
6. Measure the plug gaps with a feeler
gauge.
The gaps should be 0.024-0.028 in
(0.6-0.7
mm). Correct as necessary
by carefully bending the side elec-
trode.
7. Thread the plugs in by hand to pre-
vent cross threading.
8. After the spark plugs are seated,
tighten with a spark plug wrench to
compress the washers.
If installing new spark plugs, tighten l/2
turn after the spark plugs seat to com-
press the washers. If reinstalling used
spark plugs, tighten l/8 l/4 turn after the
spark plugs seat IO compress the wash-
ers.
NOTICE The
spark plugs must be
securely tightened. A loose spark plug
can become very hot and may cause
engine damage.
Overtightening the spark plugs can
damage the threads.
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