To Adjust Throttle Control Cable; To Adjust Choke Control; To Adjust Carburetor - Craftsman 917.251572 Owner's Manual

SERVmCE AND ADJUSTMENTS
................... I,NII, m i1,,i, ii, i .................
ENGINE CLOSED FOR
TO ADJUST THROTTLE CONTROL CABLE
(See Fig. 35)
The throttle control has been preset at the factory and
adjustment should not be necessary. Check adjustment as
described below before loosening cable. If adjustment is
necessary, proceed as follows:
• With engine not running, move throttle control lever to
fast (,_) position.
• Check that speed control lever is against stop screw. If
it is not, !oosen casing clamp screw and pull throttle
cable until lever is against screw.. Tighten clamp screw
securely.
CLAMP SCREWS
CHOKE
CONTROL
CABLE j
THROTTLE
CONTROL
CABLE
FIG. 35
IDLE SPEED
ADJUSTMENT
SCREW
TO ADJUST CHOKE CONTROL
(See Figs. 35 and 36)
The choke control has been preset at the factory and
adjustment should not be necessary, check adjustment as
described below before loosening cable_ tf adjustment is
necessary, proceed as follows:
* With engine not running, move choke control (located
on dash panel) to fu!l choke (N) position..
- Remove air cleaner cover, filter and cartridge plate to
expose carburetor choke (See "AIR FILTER" in the
Customer Responsibilities section of this manual).
° Choke should be dosed, if it is not, loosen casing
clamp screw and move choke cable until choke is
completely closed. Tighten casing clamp screw se-
curely..
-
Reassemble air cleaner,
FIG. 36
TO ADJUST CARBURETOR (See Fig. 35)
The carburetor has been present at the factory and adjust-
ment should not be necessary. 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:
• Be sure you have a clean air filter and the throttle
control cabfe is adjusted property (see above)°
, Start engine and allow to warm for five minutes. Make
finaf adjustments with engine running and shift/motion
control lever in neutral (tt) position
° The high idle is set at the factory and cannot be
adjusted.
° ld{e speed settinq - With throttle control tever in slow
(,_) position, _ngine should idle at 1200 RPM If
engine idles too slow or fast, turn idle speed adjusting
screw in or out until correct idle is attained
NOTE: The carburetor on this engine is Iow emission it is
equipped with an idle fuel needle with a limiter cap and is
not adjustable. Do not attempt to remove the fimiter cap.
The iimiter cap cannot be removed without breaking the
adjusting needle.
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.. OVERSPEEDING THE ENGINE ABOVE
THE FACTORY HiGH SPEED SETTING CAN BE
DANGEROUS iF YOU THINK THE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
EXPERIENCE TO MAKE ANY NECESSARY
ADJUSTMENTS
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