Craftsman 917.28723 Operator's Manual page 25

TO REPLACE HEADLIGHT BULB
1. Raise hood.
2. Remove bulb holder from the hole in
the backside of the grill.
3. Replace bulb in holder and install bulb
holder securely back into the hole in
the backside of the grill.
4. Close hood.
INTERLOCKS AND RELAYS
Loose or damaged wiring may cause
your tractor to run poorly, stop running, or
prevent it from starting.
, Check wiring. See electrical wiring
diagram in the Repair Parts section.
TO REPLACE FUSE
Replace with 30 amp automotive-type
plug-in fuse. The fuse holder is located
behind the dash.
TO REMOVE HOOD AND GRILL
ASSEMBLY
1. Raise hood.
2. Unsnap headlight wire connector.
3. Stand in front of tractor. Grasp hood at
sides, tilt toward engine and lift off of
tractor.
4. When replacing hood, be sure to re-
connect the headlight wire connector.
Headlight Wire
Connector
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:
,
,
With engine not running, move throttle
control lever from slow to choke posi-
tion. Slowly move lever from choke to
fast position.
Check that holes '_' in governor
control lever and hole in governor plate
line-up. If holes '_' are not aligned,
loosen clamp screw and move throttle
cable until holes are aligned. Tighten
clamp screw securely.
Governor Governor
Con _1Lever Plate
,
25
Holes '_' Throttle
Clamp
Screw Cable
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 cap. The limiter cap
cannot be removed without breaking the
adjusting needle.
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 idle mixture valve in
(clockwise) decreases the supply of fuel to
the engine giving a leaner fuel/air mix-
ture. 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 -
1. Air cleaner assembly must be assem-
bled to the carburetor when making
carburetor adjustments.
2. Be sure the throttle control cable is
adjusted properly (see above).
FINAL SETTING -
1. Start engine and allow to warm for five
minutes. Make final adjustments with
engine running and shift/motion control
lever in neutral (N) position.
Move throttle control lever to slow posi-
tion. With finger, rotate and hold throttle
lever against idle speed screw. Turn
idle speed screw to attain 1750 RPM.