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10/09/09 19:49:55 32Z8R800_012
SPARK PLUG
Recommended Spark Plugs:
The recommended spark plug has the correct heat range for
normal engine operating temperatures.
An incorrect spark plug can cause engine damage.
For good performance, the spark plug must be properly gapped
and free of deposits.
1.
Disconnect the spark plug cap, and remove any dirt from around
the spark plug area.
SPARK PLUG
SPARK PLUG CAP
2.
Remove the spark plug with a
13/16-inch spark plug wrench.
3.
Inspect the spark plug.
Replace it if damaged or
badly fouled, if the sealing
washer is in poor condition,
or if the electrode is worn.
4.
Measure the spark plug
electrode gap with a wire-
type feeler gauge. Correct the
gap, if necessary, by carefully
bending the side electrode.
The gap should be:
0.7 0.8 mm (0.028 0.031 in)
−
−
5.
Install the spark plug carefully,
by hand, to avoid cross-
threading.
6.
After the spark plug is seated, tighten with a 13/16-inch spark
plug wrench to compress the sealing washer.
When installing a new spark plug, tighten 1/2 turn after the spark
plug seats to compress the washer.
When reinstalling the original spark plug, tighten 1/8 1/4 turn
after the spark plug seats to compress the washer.
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
7.
Attach the spark plug cap to the spark plug.
12
BPR6ES (NGK)
W20EPR-U (DENSO)
SPARK PLUG WRENCH
SIDE
ELECTRODE
0.7 0.8 mm
−
(0.028 0.031 in)
−
SEALING
WASHER
−
SPARK ARRESTER (STANDARD TYPES)
In Europe and other countries where the machinery directive
2006/42/EC is enforced, this cleaning should be done by your
servicing dealer.
The spark arrester must be serviced every 6 months or 100 hours
to keep it functioning as designed.
If the engine has been running, the muffler will be hot. Allow it to
cool before servicing the spark arrester.
Spark Arrester Removal
1.
Remove the nut, air cleaner cover, wing nut, air cleaner element,
silencer nose and gasket.
NUT
AIR CLEANER
COVER
WING NUT
AIR CLEANER
ELEMENT
SILENCER
NOSE
2.
Remove the four 5 mm screws and one 6 mm screw from the
muffler protector, and remove the muffler protector.
3.
Remove the two 5 mm screws from the spark arrester, and
remove the spark arrester from the muffler.
5 mm SCREWS
MUFFLER
PROTECTOR
6 mm SCREW
MUFFLER
SPARK ARRESTER
5 mm SCREWS
ENGLISH
GASKET
5 mm SCREWS
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