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ENGINE
Maintenance,
repair,
or replacement
of
the emission
control
devices
and systems,
which
are being done at the customers
ex-
pense,
may be performed
by any non-road
engine
repair establishment
or individual.
Warranty
repairs
must be performed
by an
authorized
engine
manufacturer's
service
outlet.
TO ADJUST
THROTTLE
CONTROL
CABLE
The throttle
control
has been preset
at the
factory
and adjustment
should
not be nec-
essary.
Check
adjustment
as described
below
before
loosening
cable.
If adjust-
ment is necessary,
proceed
as follows:
1.
With engine
not running,
move throttle
control
lever from slow to choke posi-
tion. Slowly
move lever from choke
to
fast position.
2.
Check
to see if hole in throttle
lever
and hole in speed
control
bracket
are
aligned.
3.
If holes are not aligned,
loosen
cable
clamp screw
and align the holes by
inserting
a pencil
or a 1/4" drill bit
through
both holes.
4.
Pull throttle
cable
up to remove
slack
and tighten
cable clamp
screw. Re-
move alignment
pencil
or drill bit.
TO ADJUST
CARBURETOR
The carburetor
has been preset
at the
factory
and adjustment
should
not be nec-
essary.
However,
minor
adjustment
may
be required
to compensate
for differences
in fuel, temperature,
altitude
or load. If the
carburetor
does
need adjustment,
proceed
as follows:
In general,
turning
the adjusting
needles
in (clockwise)
decreases
the supply
of
fuel to the engine
giving
a leaner fuel/air
mixture.
Turning
the adjusting
needles
out
(counterclockwise)
increases
the supply
of fuel to the engine
giving
a richer fuel/air
mixture.
IMPORTANT:
Damage
to the needles
and
seats in carburetor
may result if turned
in
too tight.
NOTE:
The carburetor
on this engine
is
low emission.
It is equipped
with an idle
fuel adjusting
needle
with a limiter
cap,
which
allows
some adjustment
within
the
limits allowed
by the cap. Do not attempt
to remove
the limiter cap. The limiter cap
cannot
be removed
without
breaking
the
adjusting
needle.
1.
Be sure you have a clean air filter and
the throttle
control
cable
is adjusted
properly
(see above).
2.
Start engine
and allow to warm for five
minutes.
Make adjustments
with engine
running
and shift/motion
control
lever
in neutral
(N) position.
3.
Idle speed
setting
- With throttle
control
lever in slow
position,
engine
should
idle at 1750 RPM. If engine
idles too
slow or fast, turn idle speed
adjusting
screw
in or out until correct
idle is at-
tained.
4.
Idle fuel needle
setting
- With throttle
control
lever in slow position,
turn idle
fuel adjustment
needle
in
(clockwise)
until engine
begins
to die and then turn
out
(counterclockwise)
until engine
runs rough. Turn needle
to a point
midway
between
those two positions.
5.
Recheck
idle speed. Readjust
if nec-
essary.
ACCELERATION
TEST -
6.
Move throttle
control
lever from slow
to fast position.
If engine
hesitates
or
dies, turn idle fuel adjusting
needle
out
(counterclockwise)
1/8 turn. Repeat
test and continue
to adjust,
if neces-
sary, until engine
accelerates
smoothly.
High speed
stop is factory
adjusted.
Do
not adjust
- damage
may result.
IMPORTANT:
Never tamper
with the
engine
governor,
which is factory
set
for proper
engine
speed.
Overspeed-
ing the engine
above
the factory
high
speed
setting
can be dangerous.
If you
think the engine-governed
high speed
needs
adjusting,
contact
a Sears
or other
qualified
service
center,
which has proper
equipment
and experience
to make any
necessary
adjustments.
Throttle Lever
Spe_a_/_
\
c,b'mep
Bracket
__.Screw
Idle Speedl___
' j
.._:j
Adjusting_,____
Sc,e
,d,e Fee,
Adjusting/
/ _
Needle
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