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TO REMOVE
HOOD AND GRILL AS-
SEMBLY
o Raise hood.
o Unsnap
headlight
wire connector.
o Stand in front of tractor. Grasp hood at
sides, tilt toward engine and lift off of
tractor°
= To replace,
reverse above procedures
Hood
Headlight
Wire
Connector
ENGINE
Manintenance,
repair, or replacement
of
the emission
control devices and systems,
which are being done at the customers
expense,
may be performed
by any non-
road engine repair estyablishment
or indi-
vidual. Warranty
repairs must be per-
formed by an authorized
engine manufac-
turer's service
outlet.
TO ADJUST
THROTTLE
CONTROL
Governor
Governor
Control
Control Plate
Clamp
Holes "A"
Screw
Throttle 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:
o With engine not running,
move throttle
control lever from slow to choke posi-
tiono Slowly move lever from choke to
fast position°
o Check that holes "A" in governor
con-
trol lever and hole in governor
plate line-
up,
if holes "A" are not aligned,
loosen
clamp screw and move throttle
cable
until
holes are aligned.
Tighten clamp
screw securely,
TO ADJUST
CARBURETOR
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 caF
The limiter cap
cannot be removed
without
breaking
the
adjusting
needler
The carburetor
has been preset at the fac-
tory and adjustment
should not be neces-
sary.
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:
tn general,
turning
idle mixture valve in
(clockwise)
decreases
the supply of fuel to
the engine
giving a leaner fuel/air mixture.
Turning
the idle mixture valve out
(counterclockwise)
increases
the supply of
fuel to the engine giving a richer fuel/air
mixture.
IMPORTANT:
Damage to the needle
valve and the seat in carburetor
may
result if screw is turned
in too tight.
PRELIMINARY
SETTING
-
o Air cleaner
assembly
must be assem-
bled to the carburetor
when making car-
buretor
adjustments,
o Be sure the throttle control cable is
adjusted
properly
(see above).
FINAL SETTING
,, Start engine and allow to warm for five
minutes.
Make final adjustments
with
engine
running and shift/motion
control
lever in neutral (N) position.
o Move throttle control lever to stow posi-
tion,, With finger, rotate and hold throttle
lever
against
idle speed screw, Turn
idle speed screw to attain 1750 RPM.
° While still holding throttle lever against
idle speed screw, turn idle mixture valve
full travel clockwise
then counterclock-
wise until engine runs rough.
Turn
valve to a point midway
between those
two positions
Release throttle
lever,
27
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