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Service Air Cleaner
Your engine will not run properly and may be damaged if
you run it with a dirty air cleaner.
Replace the air cleaner every 25 hours of operation or once
each year, whichever comes first. Replace more often if
operating under dirty or dusty conditions.
To service the air cleaner, follow these steps:
1. Loosen screws (A) and remove air cleaner cover (B).
2. Carefully remove cartridge (C) from base (D).
3. Install clean (or new) air cleaner assembly inside cover.
Dispose of old filter properly.
4. Assemble air cleaner cover onto base and tighten
screws.
Service Spark Plug
Change the spark plug every 100 hours of operation or once
each year, whichever comes first. This will help your engine
to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary (see
Specifications).
4. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Use the recommended
replacement spark plug. See Specifications.
5. Install spark plug and tighten firmly.
Service Spark Arrester
The engine exhaust muffler has a spark arrester screen.
Inspect and clean the screen every 100 hours of operation or
once each year, whichever comes first.
If you use your generator on any forest-covered, brush-
covered, or grass-covered unimproved land, it must have a
spark arrester. The spark arrester must be maintained in
good condition by the owner/operator.
Clean and inspect the spark arrester as follows:
1. To remove muffler heat shield (E) from muffler (F),
remove four screws that connect guard to muffler
bracket.
2. Remove four screws that attach spark arrester screen
(G).
3. Inspect screen and obtain a replacement if torn,
perforated or otherwise damaged. DO NOT use a
defective screen. If screen is not damaged, clean it with
commercial solvent.
4. Reattach screen and muffler guard.
E
F
G
17
A
B
C
D
WARNING
Contact with muffler area can result in serious
burns.
Exhaust heat/gases can ignite combustibles,
structures or damage fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (1.5 m) of clearance on all sides of
generator including overhead.
• Code of Federal Regulation (CFR) Title 36 Parks, Forests, and
Public Property require equipment powered by an internal
combustion engine to have a spark arrester, maintained in
effective working order, complying to USDA Forest service
standard 5100-1C or later revision. In the State of California a
spark arrester is required under section 4442 of the California
Public resources code. Other states may have similar laws.