Craftsman 917.270740 Owner's Manual page 26

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-read engine repair establish-
ment or individual. Warranty repairs must
be performed by an authorized engine
manufacturer's service outlet.
TO ADJUST THROTTLE CONTROL
CABLE
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 from slow to choke
position. Slowly move lever from
choke to fast position.
• Check that holes =A" in governor
control lever and hole in governor
plate line-up. If holes "A" are not
aligned, loosen clamp screw and
move throttle cable until holes are
aligned. Tighten clamp screw se-
curely.
TO ADJUST CARBURETOR
NOTE: The carburetor on this engine is
low emission. It is equipped with an idle
fuel adjusting 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.
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 idle mixture valve in
(clockwise) decreases the supply of fuel
to the engine giving a leaner fuel/air
mixture. Turning the idle mixture valve
out (counterclockwise) increases the
supply of fuel to the engine giving a
richer fuel/air mixture.
IMPORTANT: Damage to the needle
valve and the seatin carburetor may
result if screw is turned in too tight.
Governor
Control Lever
Governor
Control Plate
o
Holes "A" Clamp Screw Cable
26