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Remove the filter element.
If the filter element is dirty, clean with warm, soapy water.
Rinse and let dry.
Apply a light coat of engine lubricant to the element, then
squeeze it out.
Replace the element in the air filter unit.
Replace the air filter cover and rotate knob clockwise to
secure.
NOTE: Do not run the generator without the air filter. Rapid
engine wear will result.
CHANGING ENGINE LUBRICANT
See Figure 15.
Remove the oil cap/dipstick.
Place a container underneath the oil drain plug to collect
used lubricant as it drains.
Unscrew the oil drain plug and remove.
Allow lubricant to drain completely.
NOTE: Drain the lubricant while the engine is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
WARNING:
Do not change engine lubricant while it is hot. Accidental
contact with hot engine lubricant could result in serious
burns.
Reinstall the oil drain plug and tighten securely.
Refill with lubricant following the instructions in the
Checking/Adding Lubricant section. For amount of
lubricant needed to refill, see Product Specifications
earlier in this manual or the accompanying engine manual,
if applicable.
Reinstall the oil cap/dipstick.
NOTE: Used lubricant should be disposed of at an ap-
proved disposal site. See your local lubricant retailer for
more information.
SPARK PLUG MAINTENANCE
See Figure 16.
The spark plug must be properly gapped and free of deposits
in order to ensure proper engine operation. To check:
Remove the spark plug cap.
Clean any dirt from around base of spark plug.
Remove spark plug using wrench (not included).
Inspect spark plug for damage, and clean with a wire
brush before reinstalling. If insulator is cracked or chipped,
spark plug should be replaced. For replacement spark
plug, see Product Specifications earlier in this manual
or the accompanying engine manual, if applicable.
MAINTENANCE
Measure plug gap. The correct gap is 0.028−0.031 in.
(0.7– 0.8 mm). To widen gap, if necessary, carefully bend
the ground (top) electrode. To lessen gap, gently tap
ground electrode on a hard surface.
Seat spark plug in position; thread in by hand to prevent
cross-threading.
Tighten with wrench to compress washer. If spark plug
is new, use 1/2 turn to compress washer appropriate
amount. If reusing old spark plug, use 1/8 to 1/4 turn for
proper washer compression.
NOTE: An improperly tightened spark plug will become
very hot and could damage the engine.
Reinstall the spark plug cap.
CLEANING THE EXHAUST PORT AND
MUFFLER
Depending on the type of fuel used, the type and amount of
lubricant used, and/or your operating conditions, the exhaust
port and muffler may become blocked with carbon deposits.
If you notice a power loss with your gas-powered products,
you may need to remove these deposits to restore perfor-
mance. We highly recommend that only qualified service
technicians perform this service.
SPARK ARRESTOR
See Figure 17.
NOTICE:
This product is equipped with a spark arrestor that has
been evaluated by the USDA Forest Service; however,
product users must comply with Federal, State, and local
fire prevention regulations. Check with appropriate au-
thorities. Contact customer service or a qualified service
center to purchase a replacement spark arrestor.
Inspect the spark arrestor for breaks or holes. Clean or
replace if necessary.
Inspect the spark arrestor for breaks or holes. Clean or
replace if necessary.
Use a brush (not provided) to remove carbon deposits from
the spark arrestor screen as needed.
DRAINING FUEL TANK/CARBURETOR
See Figures 18 - 20.
To help prevent gum deposits in the fuel system, drain the
fuel from the tank and carburetor before storing.
DRAINING THE FUEL TANK
Turn off the generator.
Turn the fuel valve to the OFF position.
Push the fuel valve knob through the generator housing
and pull down slightly to gain access to the hose barb.
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