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16
Clean and inspect the spark arrester as follows:
1. To remove muffler heat shield from muffler, remove
four screws that connect guard to muffler bracket
(Figure 12).
2. Remove four screws that attach spark arrester screen.
3. Inspect screen and replace 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.
Clean Cooling System
Over time debris may accumulate in cylinder cooling fins
and cannot be observed without partial engine disassembly.
For this reason, we recommend you have a authorized
service dealer clean the cooling system (Figure 13) per
recommended intervals (see “Maintenance Schedule” on
page 13). Equally important is to keep top of engine free
from debris. See “Generator Cleaning”.
Carburetor Adjustment
The carburetor on this engine is low emission. It is
equipped with a non-adjustable idle mixture valve and
governed idle, if equipped. Governed idle and top speed
have been set at the factory. If adjustment is required, see a
authorized service dealer.
Muffler
Spark Arrester
Screen
Heat Shield
• DO NOT touch hot surfaces and avoid hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 ft. (152 cm) 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.
Running engines produce heat.Temperature of
muffler and nearby areas can reach or exceed
150°F (65°C).
Severe burns can occur on contact.
Exhaust heat/gases can ignite combustibles,
structures or damage fuel tank causing a fire.
WARNING
Figure 12 — Service Spark Arrester
• DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at governed
speed.
• DO NOT modify generator in any way.
Excessively high operating speeds increase risk of injury
and damage to generator.
Excessively low speeds impose a heavy load.
CAUTION
Figure 13 — Air Cooling System
Clean