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15 — English
MAINTENANCE
Measurepluggap.Thecorrectgapis0.024−0.028in.
(0.60-0.70 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.
CAUTION:
Be careful not to cross-thread the spark plug. Cross-
threading will seriously damage the product.
DRAINING FUEL TANK/CARBURETOR
See Figures 16 - 17.
To help prevent gum deposits in the fuel system, drain the
fuel from the tank and carburetor before storing.
Draining The Fuel Tank:
CAUTION:
Remove all lubricant from the unit before draining the fuel
tank. Failure to do so could cause damage to the unit.
Remove the fuel cap.
Tilt the generator and allow fuel to drain from the fuel tank
into an approved container.
When the fuel has drained from the tank, replace the fuel
cap.
Draining The Carburetor:
Put the on/off switch in the ON ( I ) position.
Loosen the screw at the top of the engine cover. Remove
cover and set aside.
Position a suitable container under the carburetor drain
screw to catch fuel; loosen the screw.
Allow fuel to drain completely into container.
Retighten drain screw securely.
Put the on/off switch in the OFF ( O ) position.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used fuel.
TRANSPORTING
Put the on/off switch in the OFF ( O ) position.
Close the vent on the fuel cap.
Make sure engine and exhaust of unit is cool.
Keep unit level to prevent fuel spillage.
Do not drop or strike unit or place under heavy objects.
CHECKING/CLEANING AIR FILTER
See Figures 12 - 13.
For proper performance and long life, keep air filter clean.
Loosen the screw at the top of the engine cover. Remove
cover and set aside.
Loosen the screw in the center of the air filter cover.
Remove air filter cover and set aside.
Remove both the large and the small air filter.
Wash the air filters with warm, soapy water. Rinse and
squeeze to dry.
Reinstall the air filters.
NOTE: Make sure the filters are seated properly inside
the generator. Installing the filters incorrectly will allow
dirt to enter the engine, causing rapid engine wear.
Install the air filter cover. Tighten screw to secure.
Install the engine cover. Tighten screw to secure.
CHANGING ENGINE LUBRICANT
See Figure 14.
For best performance, engine lubricant should be changed
after every 100 hours or 6 months of operation.
Loosen the screw at the top of the engine cover. Remove
cover and set aside.
Remove the oil fill cap/dipstick.
Tilt the generator to the side and allow lubricant to drain
from the oil fill hole into an approved container.
NOTE: Drain the lubricant while the engine is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
Return the generator to an upright position and refill with
lubricant following the instructions in the Checking/
Adding Lubricant section previously in this manual.
Replace and secure the oil cap/dipstick.
Reinstall the engine cover. Replace the screw and tighten
securely.
NOTE: Used lubricant should be disposed of at an approved
disposal site. See your local retailer for more information.
SPARK PLUG REPLACEMENT
See Figure 15.
The spark plug must be properly gapped and free of deposits
in order to ensure proper engine operation. To check:
Remove the spark plug cover.
Remove the spark plug cap.
Clean any dirt from around base of spark plug.
Remove spark plug using spark plug wrench.
Inspect spark plug for damage, and clean with a wire
brush before reinstalling. If insulator is cracked or
chipped, spark plug should be replaced.
NOTE: If replacing, use the following recommended
spark plug or equivalent: NHSP LD A7RTC.