Craftsman 917.275241 Owner's Manual page 32

23.0 hp electric start 48" mower automatic garden tractor
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TO REMOVE
HOOD AND GRILL AS-
SEMBLY
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. To replace,
reverse
above
procedure,
Hood
Headlight Wire
Connector
ENGINE
CARBURETOR
TROUBLESHOOTING
AND ADJUSTMENTS
In compliance
with government
emission
standards,
the carburetor
is calibrated
to
deliver the correct
fuel-to-air
mixture to
the engine
under all operating
conditions.
The carburetor
cannot
be adjusted,
except for low idle speed. Carburetor
servicing
should
be performed
by
Sears
or other qualified
service
center
only,
TROUBLESHOOTING
If engine troubles
are experienced
that
appear to be fuel system
related,
check
the following
areas before
adjusting
the
carburetor.
1. Make sure the fuel tank is filled with
clean, fresh gasoline.
2.
Make sure the fuel tank cap vent is not
blocked
and that it is operating
properly.
3. Make sure the in-line fuel filter is
clean. Replace
the filter if it is dirty or
restricted.
4.
Make sure fuel is reaching
the
carburetor.
This includes
checking
the
fuel lines and fuel pump for restric-
tions or faulty components.
5.
Make sure the air cleaner
cartridge
and precleaner
are clean and
properly
installed.
6. Make sure the air intake screen,
blower
housing
and cooling
surfaces
of radiator
are clean and free of dirt
and debris.
7.
Make sure cooling
system
is filled to
the proper
level.
If, after checking
the items listed above,
the engine
is hard to start, runs roughly,
or stalls at low idle speed, it may be
necessary
to adjust or service
the
carburetor.
TO ADJUST
LOW IDLE SPEED
1.
Place the throttle
control into the
"slow"
position.
Using a tachometer
set the low idle speed to 1200 RPM by
turning
the low idle speed
adjusting
screw in or out.
2.
if proper operation
is not restored
after
adjusting
the low idle speed,
carbure-
tor servicing
by Sears or other
qualified
service
center may be
required.
Idle Speed
Adjusting Screw
IMPORTANT:
Never tamper with the
eninge governor,
which is factory
set for
proper engine speed. Overspeeding
the
engine above the factory
high speed
settng can be dangerous.
If you think the
engine-governed
high speed needs
adjusting,
contact a Sears or other
qualified service
center, which has
proper
equipment
and experience
to
make any necessary
adjustments.
32

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