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WARNING:
To prevent serious injury, never perform
maintenance or repairs with unit running. Always
service and repair a cool unit. Disconnect the spark
plug wire to ensure that the unit cannot start. See
Replacing the Spark Plug.
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency
stated in the table. These procedures should also be a part of any
seasonal tune-up.
NOTE: Some maintenance procedures may require special tools
or skills. If you are unsure about these procedures take
your unit to a Sears or other qualified service dealer.
NOTE: Maintenance, replacement, or repair of the emission
control devices and system may be performed by a Sears
or other qualified service dealer.
In order to assure peak performance of your engine, inspection of
the engine exhaust port may be necessary after 50 hours of
operation. If you notice lost RPM, poor performance or general lack
of acceleration, this service may be required. If you feel your engine
is in need of this inspection, refer service to a Sears or other
qualified service dealer for repair. DO NOT attempt to perform this
process yourself as engine damage may result from contaminants
involved in the cleaning process for the port.
FREQUENCY
MAINTENANCE REQUIRED
Before using
Fill fuel tank with fresh fuel
Clean and re-oil air filter
Every 25 hrs
Check spark plug condition and gap
Every 50 hrs
Clean spark arrestor
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Clean and re-oil the air filter every 25 hours of operation. It is an important
item to maintain. Failure to maintain your air filter properly can result in
poor performance or can cause permanent damage to your engine.
1.
Open the air filter cover. Push the locking tab on the top of the
cover inward, then pull the air filter cover out and down. (Fig. 18).
2.
Remove the air filter (Fig. 19).
3.
Wash the filter in detergent and water (Fig. 20). Rinse the filter
thoroughly and allow it to dry.
4.
Apply enough clean SAE 30 motor oil to lightly coat the filter
(Fig. 21).
5.
Squeeze the filter to spread and remove excess oil (Fig. 22).
6.
Replace the filter (Fig. 19).
NOTE: If the unit is operated without the air filter, you will VOID
the warranty.
7.
Reinstall the air filter cover. Position the slots on the bottom of
the air filter cover onto the tabs at the bottom of the back plate
(Figs. 19).
8.
Swing the cover up until the tab on the air filter backplate
snaps into place in the slot on the air filter cover (Fig. 23).
MAINTENANCE AND REPAIR INSTRUCTIONS
Locking
Tab
Air Filter
Fig. 18
Air Filter
Back Plate
SEE
p 8
p 11
p 12
p 12
Fig. 20
Cover
Locking Tab
Tabs
Fig. 19
Fig. 21
Fig. 22
Locking Tab
Air Filter
Cover
Fig. 23
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