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TO ADJUST THROTTLE CONTROL
CABLE
The throttle control has been preset at the
factory and adjustment should not be nec-
essary. Check adjustment as described
below before loosening cable. If adjust-
ment is necessary,proceed as follows:
• With engine not running, move throttle
control lever to fast position_
• Check that speed control lever is
against stop screw. If it is not, loosen
casing clamp screw and pull throttle
cable until lever is against screw,
Tighten clamp screw securely.
Idle
:ing
Needle
Idle Speed
Screw
Throttle
Control
Cable
Control
Cable
Stop
Screw
Clamp Screw
TO ADJUST
CHOKE CONTROL
The choke control has been preset at the
factory and adjustment
should not be nec-
essary, check adjustment
as described
below before loosening cable. If adjust-
ment is necessary,
proceed as follows:
• With engine not running, move choke
control (located on dash panel) to full
choke position.
o Remove air cleaner cover, filter and car-
tridge plate to expose carburetor choke
(See "AIR FILTER" in the Customer
Re-
sponsibilities
section of this manual).
° Choke should be closed. If it is not,
loosen casing clamp screw and move
choke cable until choke is completely
closed. Tighten casing clamp screw se-
curely,
• Reassemble
air cleaner.
Closed for Full
Choke
TO ADJUST CARBURETOR
The carburetor
has been present at the
factory and adjustment
should not be nec-
carburetor
does need adjustment,
proceec
as follows:
In general, turning the adjusting needles
in (clockwise)
decreases
the supply of fue
to the engine giving a leaner fuel/air mix-
ture. Turning the adjusting needles out
Icounterctockwise)
increases the supply o
uel to the engine giving a richer fuel/air
mixture.
IMPORTANT:
Damage to the needles
and the seats in 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 is adjusted
properly (see "TO ADJUST THROTTLE
CONTROL
CABLE" in the Service and
Adjustments
section of this manual).
° With engine off turn idle fuel adjusting
needle in (clockwise)
closing it finger
tight and then turn out (counterclock-
wise) 1 turn.
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.
• The high idle is set at the factory and
cannot be adjusted.
• Idle speed setting - With throttle control
lever in slow position, engine should
idle at 1200 RPM. tf engine idles too
slow or fast, turn idle speed adjusting
screw in or out until correct idle is
attained.
• Idle fuel needle setting - With throttle
control lever in slow position, turn idle
fuel adjusting
needle in (clockwise)
until
engine speed decreases
and then turn
out (counterclockwise)
approximately
3/4 turn to obtain the best low speed
performance°
• Recheck idle speed. Readjust if neces -
saryo
ACCELERATION
TEST -
° Move throttle control lever from slow to
fast position. If engine hesitates or dies,
turn idle fuel adjusting needle out
(counterclockwise)
1/8 turn_ Repeat test
and continue to adjust, if necessary,
until engine accelerates
smoothly.
High speed stol_ 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 facory high speed set-
ting can be dangerous.
If you think the
engine-governed
high speed needs
adjusting, contact your nearest authorized
service center/department,
which has
essary. However, minor adjustment
may
proper equipment and experience
to make
be required to compensate
for differences
any necessary" adjustments.
in fuel, temperature,
altitude or load. If the 29
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Table of Contents
Troubleshooting
