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CHANGING ENGINE LUBRICANT
See Figure 16.
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 approved
disposal site. See your local oil retailer for more information.
SPARK PLUG MAINTENANCE
See Figure 17.
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
(not included) 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.
Measure plug gap. 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.
MAINTENANCE
SPARK ARRESTOR
See Figure 18.
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 lo-
cal fire prevention regulations. Check with appropriate
authorities. Contact customer service to purchase a re-
placement spark arrestor.
Inspect the spark arrestor for breaks or holes. Replace if
necessary.
Use a brush (not provided) to remove carbon deposits
from the spark arrestor screen as needed.
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 performance.
We highly recommend that only qualified service technicians
perform this service.
DRAINING FUEL TANK/CARBURETOR
See Figures 19 - 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 the engine switch OFF ( O ).
Turn the fuel valve to the OFF position.
Remove the fuel line from the petcock by squeezing the
ends of the retaining clip and sliding the fuel line off.
Install one end of a drain line over the petcock, and place
the other end in a fuel container large enough to catch the
fuel being drained from the tank.
Turn the fuel valve to the ON position.
When the fuel has drained from the tank, close the fuel
valve and reinstall fuel line securely on petcock.
DRAINING THE CARBURETOR
Turn the engine switch OFF ( O ).
Turn the fuel valve to the OFF position.
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.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used fuel.
Page 16 — English
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