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1.
Remove the oil fill plug.
2.
Pour the oil out of the oil fill
hole and into a container by
tipping the unit to a vertical
position (Fig. 21). Allow
ample time for complete
drainage.
3.
Wipe up any oil residue on
the unit and clean up any oil
that may have spilled.
Dispose of the oil according
to Federal, State and local
regulations.
4.
Refill the crankcase
with
3.04 fl.oz. (90 ml) of SAE 30
SF, SG, SH oil.
NOTE:
Use the bottle and
spout saved from initial
oil fill to measure the
correct amount of oil.
The top of the label on
the bottle measures
approximately
3.04 fl.oz.
(90 ml) (Fig. 23). Check
the level, See Checking
the Oil Level. If the level
is low, add a small
amount of oil and
recheck.
Do not overfill
(Fig. 22).
5.
Replace the oil fill plug.
6.
Reconnect the spark plug boot.
AIR FILTER MAINTENANCE
IDLE SPEED ADJUSTMENT
Rack
_
Tabs
The idle speed of the engine is
Pinata "-_
_-_-_
adjustable. An idle adjustment
screw is between the air filter
cover and the engine starter
Air Fiff
housing (Fig. 29).
NOTE:
Careless adjustments
can seriously damage
Locking Tab
the unit. Aside from idle
speed, only a Sears or
Fig. 21
other qualified service
Fig. 28
Fig. 22
A
Fill Line ___,,_
Fig. 23
m
_ lkL_
ARNING:
To avoid serious personal injury, always turn the
unit off and allow it to cool before cleaning or maintaining it.
Air Fiffer Cover
Cleaning
the Air Filter
Clean and re-oil the air filter every
10 hours of operation.
It is an
,
important
item to maintain.
Failure'
to maintain the air filter properly
can result in poor performance
or
can cause permanent damage to
the engine.
1.
Open the air filter cover. Push
the tab on the underside of
the cover inward. Then pull
the air filter cover out and up.
(Fig. 24).
2.
Remove the air filter
(Fig. 28).
3.
Wash the filter in detergent
and water (Fig. 25). Rinse the
filter thoroughly and allow it to
dry.
4.
Apply enough clean SAE 30
motor oil to lightly coat the
filter (Fig. 26).
5.
Squeeze the filter to spread
and remove excess oil (Fig. 27).
6.
Replace the filter (Fig. 28).
NOTE:
If operating the unit
without the air filter,
WILL VOiD the warranty.
7.
Reinstall the air filter cover.
Position the slots on the top
of the air filter cover onto the
tabs at the top of the back
plate
(Fig. 24).
8.
Swing the cover down until
the tab on the air filter
backplate snaps into place in
the slot on the air filter cover
(Fig. 24).
Fig. 24
Air Filter
Tab
Fig. 25
Fig. 26
Fig. 27
dealer should make carburetor
adjustments.
First, Check Fuel
Old fuel is usually the reason for improper unit performance. Drain and refill the tank
with fresh fuel prior to making any adjustments. Refer to Oil and Fuel Information.
Second,
Clean Air Filter
The condition of the air filter is important to the operation of the unit. A dirty
air filter will restrict air flow. This is often mistaken for an out of adjustment
carburetor. Check the condition of the air filter before adjusting the idle
speed screw. Refer to Air Filter Maintenance.
Third, Adjust
Idle Speed Screw
_
ARNING:
The cutting attachment
may spin during idle speed J
adjustments.
Wear protective clothing and observe all safety
instructions
to prevent serious personal injury.
If, after checking the fuel and cleaning the air filter, the engine still will not
idle, adjust the idle speed screw as follows:
1.
Start the engine and let it run at a high idle for a minute to warm up.
Refer to Starting/Stopping
Instructions.
Idle Adjustment
Screw
2.
Release the throttle trigger and
let the engine idle. If the engine
stops, insert a small phillips
screwdriver in between the Air
Filter Cover and the Engine
Cover (Fig. 29). Turn the idle
speed screw in, clockwise, 1/8
of a turn at a time (as needed)
until the engine idles smoothly.
Fig. 29
NOTE:
The cutting attachment
should not rotate when the engine idles.
3.
If the cutting attachment
rotates when the engine idles, turn the idle
speed screw counterclockwise
1/8 of a turn at a time (as needed), to
reduce idle speed.
Checking the fuel, cleaning the air filter, and adjusting the idle speed should
solve most engine problems. If not and any of the following are true have the
unit serviced by a Sears or other qualified service dealer:
• the engine will not idle
the engine hesitates or stalls on acceleration
there is a loss of engine power
ROCKER ARM CLEARANCE
I A
WARNING:
To avoid serious personal injury, always turn the
__un
t off and a ow it to cool before cleaning or maintaining
it.
1
This requires disassembly of the engine. If unsure or unqualified to perform this,
take the unit to a Sears or other qualified service dealer.
NOTE:
Inspect the valve to rocker arm clearance with a feeler gauge after
the first 10 hours of operation and every 25 hours of operation.
The engine must be cold when checking
or adjusting the valve clearance.
This task should be performed inside, in a clean, dust free area.
1.
Remove the six (6) screws on the back of the engine cover with a Flat-
head or T-25 Torx screwdriver (Fig. 30).
2.
Disconnect the spark plug wire.
3.
Clean dirt from around
the
View
of the
Rear
Engine
Cover
spark plug. Remove the spark
plug from the cylinder head by
turning a 5/8 in. socket
Screws
counterclockwise.
Screws
4.
Remove the engine cover
(Fig. 30).
5.
Clean dirt from around the
rocker arm cover. Remove
the screw holding the rocker
Fig. 30
arm cover with a large flat
blade screwdriver
or Torx T-25 bit (Fig. 30). Remove the rocker arm
cover and gasket.
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