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e. ACCELERATION
CHECK
L Allow engine to idle. Be sure the trimmer
line is extended to the maximum length al-
lowed by the line limiter.
2. Squeeze trigger fully:
a.) If performance
is satisfactor_
pro-
eeed to "d. Deceleration
Cher_k."
b:) If the
engine
does
not
accelerate
smoothl_
turn
the
_
screw
counterclockwise
a small mount
(no
more than the width of the slot in the ad-
justing
screw).
3. Repeat step"2."until smooth acceleration
is obtained.
Do not attempt
to adjust
the
screw beyond the stops as damage can occur.
NOTE." It may be necessary to repeat "Idle Speed
Adjustment"
through
"Acceleration
Check," to
obtain correct adjustments.
4. Follow the instructions
in the "Decelera-
tion Check _ section.
d. DECELERATION
CHECK
1. Allow engine to idle.
Be sure the trimmer
line is extended to the maximum
length al-
lowed by the line limiter.
2. Squeeze throttle trigger fully.
3. Allow the engine to mn at full speed
for
about i second.
4. Release thethrottle t rigger t otheidle posi-
tionand listen tothedeceleration oftheen-
gine. It must retm'n to idlesmoothly and
within
I to2 seconds.
a. If performance
is satisfaetor_
no
further adjustments
are necessary.
i
i
|
i
b. If the eng_. e slowly
or erratically
returns
to idle
or idles
erratically,
proceed to Mixture
Adjustment.
e. MIXTURE
ADJUSTMENT
DO not
operate
engine
at
full
r p r?longed
periods
while
mak-
g mLxture
adjustments
as damage
to the
engine
can occur.
I. Support the lower end so the trimmer line
is off the ground and will not make contact
with any object. Be sure the trimmer line is
extended
to the maximum
length allowed
by the line limiter.
2. Start the engine.
Allow engine to idle, then
squeeze throttle trigger R_ly.
NOTE.. Perform steps "3." through "5." at full throt-
tle,
3. Turn
mixture
screw
(Figure21)
very
slowly clockwise
until
engine
speed is re-
duced.
4. Turn mixture screw very slowlycounter.
clockwise. Stop when the enginebeginsto
runroughly.
5. Turn
screw slowly
the minimum
mount
clockwise
until
engine runs smoothly.
Do
not a_tempt to adjust
the screw beyond the
stops as damage
can occur.
6. Follow
instructions
in
"Acceleration
Check" and "Deceleration
Check".
[ CAUTION;
IIf the engine
does not operate
ac-
cording
to these
instructions
after
repeat-
mg the adjusting
steps,
do not use the tool.
Take _t to your nearest
SEARS
Service
Cen-
ter/Department.
H
i
i
,
H,H, HI
E. SPARK
PLUG
--
Replace the
spark plug yearly.
H HH HI HI HH IHI, H
NOTES
-17-
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