To Adjust Throttle Control Cable; To Adjust Carburetor - Craftsman 917.272011 Owner's Manual

ENGINE
Maintenance, r epair,or replacement o fthe
emissioncontroldevicesandsystems,
whicharebeingdoneat the customers
expense may be pedormed by any non-
road engine repair establishment or ind -
viduaL Warranty repairs must be per-
formed by an authorized engine manufac-
turer'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 to see if hole in throttle lever and
hole in speed control bracket are
aligned.
• 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.
Cable Clamp "_
Screw
Speed Control
Bracket
Throttle Lever
TO ADJUSTCARBURETOR
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 follow_:
In general, turning the adjusting needles
in (clockwise) decreases the supply of fuel
to the engine giving a leaner fuel/a=r mix-
ture. Tuming the adjusting needles out
(counterclockwise) increases the supply of
fuel to the engine giving a richer fueVair
mixture.
IMPORTANT: Damage to the needles and
the seats in carburetor may result if nee-
dle is turned in too tight.
NOTE; The ca_uretor on this engine is
low emission. It is equipped with an idle
fuel adjI_,_ting 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.
• Be sure you have a clean air filter and
the throttle control cable is adjusted
properly (see above).
• Start engine and allow to warm for five
minutes. Make adjustments with engine
running and shift/motion control lever in
neutral (N) position.
• Idle speed settina - 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.
• Idle fuel needle settino - With throttle
control lever in slow position, turn idle
fuel adjustment needle in (clockwise)
until engine begins to die and then tum
out (counterclockwise) until engine runs
rough. Turn needle to a point midway
between those two positions.
• Recheck idle speed. Readjust if neces-
sary.
ACCELERATION TEST
• Move throttle control lever from slow to
fast position. If engine hesitates or dies,
tum idle fuel adjusting needle out (coun-
terclockwise) 118 turn. Repeat test and
continue to adjust, if necessary, 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. Overspeeding the
engine above the factory high speed set-
ting can be dangerous. If you think the
engine-governed high speed needs
adjusting, contact your nearest AUTHO-
RIZED service center, which has proper
equipment and experience to make any
necessary adjustments.
Idle Speed
Adjusting
Screw
Idle Fuel
Needle
28