Honda iGX270 Owner's Manual page 12

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SPARK PLUG
Recommended Spark Plugs: BPR6ES (NGK)
W20EPR-U (DENSO)
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
21 mm (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 21 mm (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 sealing washer.
When reinstalling a used spark plug, tighten 1/8–1/4 turn after the
spark plug seats to compress the sealing washer.
TORQUE: 18 N∙m (13 lbf∙ft, 1.8 kgf∙m)
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
SPARK PLUG WRENCH
SIDE
ELECTRODE
0.7–0.8 mm
(0.028–0.031 in)
SEALING
WASHER
ENGLISH
SPARK ARRESTER (applicable 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
GASKET
5 mm SCREWS