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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 establishment
or individual° Warranty
repairs must be performed by an authorized
engine manufacturer's
service outlet.
TO ADJUSTTHROTTLE
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:
1. With engine not running, move throttle
control lever from slow to choke position.
Slowly move lever from choke to fast
position.
2.
Check that holes 'W' 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
securely.
Governor
Control Lever
Governor
Control Plate
\
Holes "A"
/
Clamp Screw
Throttle
Cable
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 fueVair mixture°
Turning the idle mixture valve out (counter-
clockwise) increases the supply of fuel to the
engine giving a richer fueVair mixture,.
IMPORTANT:
Damage to the needle valve
and the seat in carburetor may result if screw
is turned in too tight.
PRELIMINARY
SETTING -
!.
Air cleaner assembly must be as-
sembled to the carburetor when making
carburetor
adjustments.
2.
Be sure the throttle control cable is
adjusted properly (see above).
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.
2o Move throttle control lever to slow
position. With finger, rotate and hold
throttle
lever against idle speed screw.
Turn idle speed screw to attain 1750
RPM.
3. While still holding throttle lever against
idle speed screw, turn idle mixture valve
full travel clockwise then counterclock-
wise until engine runs rough° Turn valve
to a point midway between those two
positions.
Release throttle lever°
27
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