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TO ADJUST CARBURETOR
The carburetorhas beenpreset at the factory
and adjustmentshouldnot be necessary.
However, minoradjustmentmay be required
to compensatefor differencesin fuel,tam-
perature, altitudeor load.Ifthe carburetor
does need adjustment,proceed as follows:
In general, turningthe adjustingneedlesin
(clockwise)decreases the supplyoffuel to
the engine givinga leanerfueVair mixture.
Turningthe adjustingnoodlesout (counter-
clockwise)increases the supplyof fuel to the
engine givinga richerfuel/air mixture.
IMPORTANT: Damage to the needles and
seats incarburetormay resultiffumed intoo
tight.
NOTE: The carburetor on this engine is low
emission. It is equipped with an idle fuel ad-
justing needle with a limitercap, 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 with-
out breaking the adjusting needle.
• Be sure you have a clean air filter and the
throttle control cable is adjusted properly
(see above).
• Start engine and allow to warm for five min-
utes. Make adjustments with engine run-
ning and shift/motion control lever in neu-
tral (N) position.
• Idle seeed settina - With throttle control le-
ver in slow position, engine should idle at
1750 RPM. If engine idles tooslow or fast,
turn idle speed adjusting screw in or out
until correct idle is attained.
• Idle fuel needle setting - With throttle con-
trol lever inslew position, turn idle fuel ad-
justment needle in (clockwise) until en-
gine begins to die and then turn out (coun-
terclockwise) until engine runsrough. Tum
needle to a point midway between those
two positions.
• Recheck idlespeed. Readjust if necessary.
ACCELERATION TEST-
• Move throttle control lever from slow to fast
position. Ifengine hesitates or dies, turn
idle fuel adjusting noodle out (counter-
clockwise) 1/8 turn. Repeat test and con-
tinue to adjust, ifnecessary, until engine
acceleratessmoothly,
High speed stop is factory adjusted. Do
not adjust - damage may result.
IMPORTANT; Never tamper with the en-
gine governor, which is factory set for
proper engine speed. Overspeeding the
engine above the factory high speed set-
ting can be dangerous. If you think the en-
gine-governed high speed needs adjust-
ing, contact your nearest AUTHORIZED
service center/department, which has
proper equipment and experience to
make any necessary adjustments.
Idle Speed
Screw [ IL_ _(_-_[_1
Idle Fuel II _,
Adjust,n il
Needle LI1
28
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