Operating Guide

15
Fig. Q
A
B
005486
Service Spark Plug
To service spark plug:
1. Remove spark plug cover and disconnect spark plug
wire. Place spark plug wire where it cannot contact
spark plug.
2. Clean area around spark plug.
3. Remove and inspect spark plug.
4. Inspect electrode gap with feeler gauge and set
spark plug gap to 0.6–0.7 mm (0.024–0.028 in) (Fig.
R).
Fig. R
000211
NOTE: Replace spark plug if electrodes are pitted, burned,
or porcelain is cracked. Use ONLY recommended replace-
ment plug. See Product Specifications.
5. Install spark plug finger tight, and tighten an addi-
tional 3/8 to one-half turn using spark plug wrench.
6. Connect spark plug wire and install spark plug
cover.
Inspect Muffler and Spark Arrester
NOTE: It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any forest-
covered, brush-covered, or grass-covered land unless the
exhaust system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have simi-
lar laws.
Contact original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for exhaust
system installed on this engine.
NOTE: Use ONLY original equipment replacement parts.
Inspect muffler for cracks, corrosion, or other damage.
Remove spark arrester, if equipped, and inspect for dam-
age or carbon blockage. Replace parts as required.
Inspect Spark Arrester Screen
WARNING: Hot surfaces. When operating machine,
do not touch hot surfaces. Keep machine away
from combustibles during use. Hot surfaces could
result in severe burns or fire. (000108)
Clean Spark Arrestor Screen
The engine exhaust muffler has a spark arrestor screen.
Inspect and clean the screen every 100 hours of opera-
tion or every six months, whichever comes first.
To service spark arrestor (Fig. S):
1. Remove the clamp to remove retainer.
2. Slide spark arrestor screens out from the muffler
outlet tube.
3. Inspect spark arrestor screens and replace if torn,
perforated, or otherwise damaged. Do NOT use a
faulty spark arrestor screen. If spark arrestor screen is
not damaged, clean with a commercial solvent.
4. Replace spark arrestor screens and retainer, and
secure with clamp.
Fig. S
010475
Valve Clearance
IMPORTANT NOTE: If uncomfortable about doing this pro-
cedure, or the correct tools are not available, take gen-
erator to the nearest service center to have valve
clearance adjusted.
Inspect valve clearance after the first 50 hours of opera-
tion. Adjust as necessary.
• Intake — 0.10 ± 0.02 mm (cold) (0.004 ± 0.001 in)
• Exhaust — 0.10 ± 0.02 mm (cold) (0.004 ± 0.001 in)