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Initial Settings:
1. Turn both mixture screws (L and
H) counterclockwise
until they
stop,
2. Turn the IDLE SPEED screw clock-
wise until it stops. Now turn coun-
terclockwise
4 1/2 turns,
3. Start engine, cut grass for 3 min-
utes, then proceed to adjust
screws according to the instruc-
tions below. If engine perfor-
mance at initial settings is accept-
able, no further adjustments
are
necessary.
If engine does net
start, refer to TROUBLESHOOTING
TABLE.
If still unable to remedy
situation, call 1-800-235-5878.
Idle Speed
Allow engine to idle. If the trimmer
head moves, idle speed is too fast. If
the engine stalls, idle speed is too
slow.
• Turn IDLE SPEED screw clockwise to
increase engine speed.
• Turn IDLE SPEED screw counterclock-
wise to decrease engine speed.
Low Speed Adjustment
-L
1. Allow the engine to idle.
2. Turn low speed mixture screw (L)
slowly clockwise until the speed
begins to drop.
3. Turn the low speed mixture screw
(L) counterclockwise
until the
speed increases and then starts to
drop again.
4. Set the low speed mixture screw
(L) at the midpoint between the
two positions.
Readjust the idle speed (See IDLE
SPEED).
High Speed Mixture-H
CAUTION:
De net operate engine at
full throttle for prolonged periods while
making high speed adjustments as
damage to the engine can occur.
Install a new cutting line before adjust-
ing carburetor to ensure the proper
load is on the engine. Adjust the high
speed screw 1/16 of a turn at a time.
A 1/16 turn is about the width of the
slot in the top of the screw.
1. Allow the engine to idle.
2. Squeeze the throttle trigger fully.
Turn the high speed mixture screw
(H) counterclockwise
until it stops.
3. Turn the high speed mixture screw
(H) 1116 of a turn clockwise at a
time until the engine runs smooth-
ly.
After completing adjustments,
check
for acceleration
and trimmer head
movement at idle. Reset if necessary.
Acceleration
Check
If engine dies or hesitates instead of
accelerating,
turn the low speed mix-
ture screw (L) counterclockwise
until
you have smooth acceleration.
zl,
_
41_WARNING:
Perform the follow-
ing steps after each use:
• Allow engine to cool before storing
or transporting.
• Store unit and fuel in a well venti-
lated area where fuel vapors cannot
reach sparks or open flames from
water heaters, electric motors or
switches, furnaces, etc.
• Store unit with all guards in place.
Position unit so that any sharp ob-
ject cannot accidentally cause injury.
• Store unit and fuel well out of the
reach of children.
SEASONAL
STORAGE
Prepare unit for storage at end of sea-
son or if it will not be used for 30 days
or more.
If your unit is to be stored for a period
of time:
• Clean the entire unit before lengthy
storage.
• Store in a clean dry area.
• Lightly oil external metal surfaces.
FUEL SYSTEM
Under FUELING ENGINE in the OPERA-
TION section of this manual, see mes-
sage labeled IMPORTANT regarding
the use of gasohol in your engine.
Fuel stabilizer is an acceptable alter*
native in minimizing the formation of
fuel gum deposits during storage. Add
stabilizer to the gasoline in the fuel
tank or fuel storage container. Follow
the mix instructions
found on stabilizer
container. Run engine at least 5 min-
utes after adding stabilizer.
Craftsman 40:1, 2-cycle engine oil (air
cooled) is already blended with fuel
stabilizer. If you do not use this Sears
oil, you can add a fuel stabilizer to
your fuel tank.
15
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