MAINTENANCE & ADJUSTMENTS
4. Measure the spark plug
electrode gap with a
suitable gauge. The gap
should be 0.7 - 0.8 mm
(0.028 - 0.031 in). Correct
the gap, if necessary, by
carefully bending the side
electrode.
5. Install the spark plug
carefully, by hand, to avoid
cross-threading.
6. After the spark plug seats,
tighten with a 21 mm
(13/l 6 in) spark plug
wrench to compress the
washer.
If reinstalling the old spark
plug, tighten l/8 to l/4 turn
after the spark plug seats.
If installing a new spark
plug, tighten l/2 turn after
the spark plug seats to
compress the washer.
0.7-.08 mm
(0.028403
INOTICEI
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
7. Install the spark plug cap on the spark plug.
l
44