Carburetor; Throttle Control Cable; Carburetor Adjustment - Craftsman 917.254740 Owner's Manual

7,
REPAIR &
S,ttrting your Tr*ctor With. Wo*k _sttoty
If your battery is too weak to start the engine, it
should be recharged. If "'jumper cables" are used
for emergency starting, follow this procedure;
NOTE: YOUR TRACTOR IS EQUIPPED WITH A 12
VOLT NEGATIVE GROUNDED SYSTEM. THE OTHER
VEHICLE MUST ALSO BE A 12 VOLT NEGATIVE
GROUNDED SYSTEM.
LEAD-ACID 8ATTER|ES GENERATE EX-
PLOSIVE GASES. KEEP SPARKS, FLAME
AND SMOKING MATERIALS AWAY FROM
BATTERIES, ALWAYS WEAR EYE PRO_
TECT]ON WHEN AROUND BATTERIES.
a. Connect each end of the RED came to the
POSITIVE (+) terminals of each battery
(taking care not to short against chassis)
(Fig. 30).
b. Connect one end of the BLACK cable to the
NEGATIVE (-) terminal of fully charged
battery.
c. Connect the other end of the came to the L,H,
side pane! bolt (Fig. 14). NOTE, KEEP
AWA Y FROM GAS TANKAND BATTERY.
d. Disconnect cables in reverse order:
t. L.H. side pane/ bo/t (Fig. t4).
2. Negative termina/ of fufly charged battery.
3. Positive termina/s.
I _ DO NOT USE YOUR TRACTOR BAT*
!
_ TERY TO START OTHER VEHICLES, J
2. Throttle Control Cable Adjustment
3,
Never attempt to change maximum engine speed.
This is preset at the factory (3600 +- 100 RPM)
and should only be changed by a qua/flied service
technician who has the necessary equipment.
a. Remove hood (page 23).
b. Loosen casing clamp screw until throttle cable
is free to move.
c. Move throttle control (on the dashboard) to
""FA S T" position.
d. Pull throttle cable tight (until swivel below
carburetor is against side of quarter cffcle).
Retighten casing clamp screw.
Carburetor Adjustment
NOTE: ADJUST THROTTLE CONTROL CABLE
BEFORE MAKING ANY ADJUSTMENT TO CAR-
BURETOR. AIR CLEANER MUST BE ASSEMBLED TO
CARBURETOR WHEN RUNNING ENGINE,
[
Minor carburetor adjustments may be required to
compensate for differences in fuel, temperature
or altitudes Adjust the carburetor fuel mixture
as follows:
REFER TO "STARTING THE ENGINE," 1
PAGE 13.
a. Gendy turn idle mixture valve clockwise
(_.) (Fig. 32) until it just doses and then
counterclockwise (._-, ) 1_!/2 turns.
CAUTION: Valve may be damaged if turned 21
ADJUSTMEN
THROTTLE CA_!
CLAMP SCREW
\
HOLES "A"
\
THROTTLE CAB
CARBURETOR
FIGURE
IDLE SPEED
ADJUSTING
SCREW
iDLE MIXTURE
VALVE
GOVERNOR
CONTROL LEVER
MA_
JET COVEI
(HIGH SPE
FIGUR,
b. Start engine and a/low to warm for 1
minutes. Make final adjustments with on9
running and choke pushed in.
c. Move throttle control lever (on dashboard)
"SL 0 W" position.
d. Hold governor control lever against idle sp,
screw, and adjust idle speed screw to obt
1200 to 1400 RPM (Fig. 31).
e. While stiff ho/dinq the governor control/E
against idle speed screw, turn idle mixt
valve slowly clockwise (_-_) (lean mixt,
until speed just starts to slow.
f. Turn idle mixture valve back to the midpc
between rich and lean.
g. Adjust the idle speed screw to obtain 90_
1200 RPM. Release governor control lever.
h. Move throttle control (on the dashboard)
"FAST. "" if engine hesitates or dies, turn
mixture valve approximately 1/8 turn coun
clockwise (_-_) until engine will acce/e,
as throttle control is moved from "SLC
to "'FAST. ""