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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 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. Governor
Governor
Control Lever
Control Plate
Holes
Throttle Cable
Clamp
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
richP.r fHp.I/Rir mi..-tHr_
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.
• Be sure the throttle control cable is
adjusted properly (see above).
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.
• 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.
• While still holding throttle lever against
idle speed screw, turn idle mixture
valve full travel clockwise then
counterclockwise
until engine runs
rough. Turn valve to a point midway
between
those two positions.
Release
throttle
lever.
ACCELERATION
TEST -
• Move throttle control lever from slow to
fast position.
If engine hesitates or
dies, turn idle mixture
valve out
(counterclockwise)
1/8 turn.
Repeat
test and continue to adjust, if neces-
sary, until engine accelerates
smooth-
ly.
High speed stop is factory
adjusted.
Do
not adjust - damage may result.
IMPORTANT:
Never tamper with the
engine governor, which is factory set for
proper engine speed.
Overspeeding
the
engine above the factory
high speed
setting can be dangerous.
If you think
the engine-governed
high speed needs
adjusting,
contact your nearest AUTHO-
RIZED service
center/department,
which
has proper
equipment
and experience
to
make any necessary
adjustments.
Idle
_
Speed |
Screw
Idle Mixture/
Valve with,i"
Limiter
z._._
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