Service Spark Plug
To service spark plug:
1. Remove spark plug cover.
2. Clean area around spark plug.
3. Remove and inspect spark plug.
4. Inspect electrode gap with wire feeler gauge and
reset spark plug gap to 0.6 - 0.7mm (0.024 - 0.028
NOTE: Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Use ONLY recommended replacement
5. Install spark plug finger tight, and tighten an addi-
tional 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 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 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 replacement 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.
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 season, whichever comes first.
To service spark arrestor
1. Remove the clamp to remove retainer.
2. Slide spark arrestor screens out from the muffler
3. Inspect screens and replace if torn, perforated or
otherwise damaged. Do NOT use a defective screen.
If screen is not damaged, clean with a commercial
4. Replace the screens, and retainer, and secure with
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
Check valve clearance after the first fifty-hours of opera-
tion. Adjust as necessary.
• Intake — 0.10 ± 0.02mm (cold), (0.004" ± 0.001"
• Exhaust — 0.10 ± 0.02mm (cold) (0.004" ± 0.001"
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. (000143)
WARNING: Risk of Fire. Verify machine has prop-
erly cooled before installing cover and storing
machine. Hot surfaces could result in fire.
It is recommended to start and run the generator for 30
minutes, every 30 days. If this is not possible, refer to the
following list to prepare unit for storage.
• DO NOT place a storage cover on a hot generator. Allow
unit to cool to room temperature before storage.
• DO NOT store fuel from one season to another unless
• Replace fuel container if rust is present. Rust in fuel will
cause fuel system problems.
• Cover unit with a suitable protective, moisture resistant
• Store unit in a clean, dry area.
• Always store generator and fuel away from heat and