Sears 917.275223 Lawn Mower User Manual


 
ENGINE
Maintenance, repair, or replacement of
the emission controldevices and sys-
tems, which are being done at the
customers expense, may be performed
by any non-read engine repair establish-
ment or individual.Warranty repairs must
be performed by an authorized engine
manufacturer'sservice outlet.
TO ADJUST THROTTLE CONTROL
CABLE
The throttlecentrol has been presetat the
factory and adjustment should not be
necessary. Check adjustmentas de-
scdbed below before loosening cable. If
adjustment is necessary,proceed as
follows:
1. With engine notrunning, move throttle
control lever to fastposition.
2. Check that speed controllever is
against stop screw. If itis not, loosen
casing clamp screw and pull throttle
cable until lever isagainst screw.
Tighten clamp screw securely.
Idle Fuel Adjusting Idle speed Adjusting
Screw
Throttle
Control
Cable
Screw Clamp Screw
Choke Control Cable
TO ADJUST CHOKE CONTROL
The choke controlhas been preset at the
factory and adjustment should not be
necessary, check adjustment as de-
scribed below before loosening cable. If
adjustment is necessary, proceedas
follows:
1. With engine notrunning, move choke
control (located on dash panel) to full
choke position.
2. Remove air cleaner cover, filter and
cartridge plate to expose carburetor
choke (See =AIRFILTER" in the
Maintenance section of thismanual).
3. Choke shouldbe closed. If it is not,
loosen casing clamp screw and move
choke cable untilchoke iscompletely
closed. Tighten casing clamp screw
securely.
4. Reassemble air cleaner.
Closed for Full
TO ADJUST CARBURETOR
The carburetor has been present at the
factory and adjustment shouldnot be
necessary. However, minor adjustment
may be requiredto compensate for
differences in fuel, temperature, altitude
or load. If the carburetor does need
adjustment, proceed as follows:
In general, turning the adjusting needles
in (clockwise) decreases the supplyof
fuel to the engine giving a leaner fuel/air
mixture. Turningthe adjustingneedles out
(counterclockwise) increases the supply
offuel to the engine givinga richerfuel/
air mixture.
IMPORTANT: Damage to the needles
and the seats in carburetor may result if
screw is turned in too tight.
PRELIMINARY SETTING -
1. Be sure youhave a clean air filter, and
the throttlecontrol cable is adjusted
propedy (see =TOADJUST
THRO]3-LE CONTROL CABLE"in the
Service and Adjustments sectionof
this manual).
2. With engine off tum idle fuel adjusting
needle In (clockwise) closingit finger
tightand then turn out (counterclock-
wise) 1 tum.
FINAL SETTING -
1. Start engine and allow to warm for five
minutes. Make final adjustments with
engine running and shift/motion
control lever in neutral (N) position.
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