Service Spark Plug
To service spark plug:
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Inspect electrode gap with wire feeler
gauge and reset spark plug gap to 0.6 -
0.7mm (0.024 - 0.028 in). See
Figure 4-5. Spark Plug
NOTE: Replace spark plug if electrodes are
pitted, burned or porcelain is cracked. Use
ONLY recommended replacement plug. See
Specifications.
4. Install spark plug finger tight, and tighten
an additional 3/8 to 1/2 turn using spark
plug wrench.
Inspect Muffler and Spark Arrester
NOTE: It is a violation of California Public
Resource Code, Section 4442, to use or oper-
ate 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, main-
tained in effective working order. Other states
or federal jurisdictions may have similar 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 replace-
ment parts.
Inspect muffler for cracks, corrosion, or other
damage. Remove spark arrester, if equipped,
inspect for damage or carbon blockage.
Replace parts as required.
Inspect Spark Arrester Screen
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.
14
Figure
WARNING
Clean Spark Arrestor Screen (50
State)
The engine exhaust muffler has a spark arres-
tor screen. Inspect and clean the screen every
50 hours of operation or once each year,
whichever comes first.
4-5.
To service spark arrestor:
1. See
remove retainer (B).
2. Slide spark arrestor screens (C) out from
the muffler outlet tube (D).
3. Inspect screens and replace if torn, perfo-
rated or otherwise damaged. Do NOT use
a defective screen. If screen is not dam-
aged, clean with a commercial solvent.
4. Replace the screens, and retainer, and
secure with clamp.
000211
Valve Clearance
IMPORTANT NOTE: If uncomfortable about
doing this procedure, or the proper tools
are not available, take generator to the
nearest service center to have valve clear-
ance adjusted.
Check valve clearance after the first fifty-hours
of operation. Adjust as necessary.
• Intake — 0.10 ± 0.02mm (cold), (0.004" ±
0.0007" inches)
• Exhaust — 0.10 ± 0.02mm (cold) (0.004" ±
0.0007" inches)
Storage
General
(000108)
Figure
4-6. Remove the clamp (A) to
D
Figure 4-6. Spark Arrestor Screen
DANGER
Explosion and Fire. Fuel and vapors are extremely
flammable and explosive. Store fuel in a well
ventilated area. Keep fire and spark away. Failure
to do so will result in death or serious injury.
WARNING
Risk of Fire. Verify machine has properly
cooled before installing cover and storing
machine. Hot surfaces could result in fire.
Owner's Manual for Portable Generator
C
A
B
000668
(000143)
(000109)