Craftsman 917.270860 - Manual (Page 27)

TO REMOVE HOOD AND GRILL
ASSEMBLY
• Raise hood.
• Unsnap headlight wire connector.
• Stand in front of tractor. Grasp hood at
sides, tilt toward engine and lift off of
tractor.
• To replace, reverse above procedure.
Hood
Headlight Wire
Connector
ENGINE
Maintenance, repair, or replacement of
the emission control devices and
systems, which are being done at the
customers expense, may be performed
by any non-road engine repair establish­
ment or individual. Warranty repairs must
be performed by an authorized engine
manufacturer's service outlet.
TO ADJUST THROTTLE CONTROL
CABLE
TTie 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 swivel is against stop. If it is
not, loosen cable clamp screw and
pull cable back until swivel is against
stop. Tighten cable clamp screw
securely.
Clamp Screw
Swivel
ThrottI
Cable
Governed Idle Spring
(Red or White)
TO ADJUST CHOKE CONTROL
The choke control has been preset at th<
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 choke
control (located on dash panel) to full
choke position.
• Loosen knob and remove cover
assembly from air cleaner.
• Choke should be closed. If it is not,
loosen casing clamp screw and move
choke cable until choke is completely
closed. Tighten casing ciamp screw
securely.
• Replace air cleaner cover assembly
and tighten knob.
TO ADJUST CARBURETOR
The carburetor has been preset at the
factory and adjustment 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:
In general, turning the mixture screw in
(clockwise) decreases the supply of fuel
to the engine giving a leaner fuet/air
mixture. Turning the mixture screw out
(counterclockwise) increases the supply
of fuel to the engine giving a richer fuel/
air mixture.
IMPORTANT:
Damage to the
needies and the seats in the carburetor
may result if screw is turned in too tight.
PRELIMINARY SETTING -
Be sure you have a clean air filter
and the throttle control cable ant
choke are adjusted properly (set
above).
With engine off turn idle mixturt
screw
in (clockwise) closing it fin
ger tight and then turn out (counter
clockwise) 1 -1 /4 to 1 -1 /2 turns.
27
FINAL SETTING-
• Start engine and allow to warm for five
minutes. Make final adjustments with
engine running and shift/ motion
control lever in neutral (N) position.
• With throttle control lever in slow
position, hold throttle lever against idle
speed screw and adjust idle speed
screw to obtain 1300 to 1500 RPM.