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SERWCE AND ADJUSTMENTS
ENGgNE
TO ADJUST THROTTLE CONTROL CABLE
(See Fig, 32)
The throttle controi has been preset at the factory and
adjustmentshould notbe necessary Checkadjustmentas
described below before loosening cable.. If adjustment is
necessary, proceed as follows:
o With engine not running, move throttle control lever
from slow (,_,) to choke (N) position. Slowly move
lever from choke (l\l) to fast (=f_) position.
o Check to see if hote in throttle lever and hole in speed
control bracket are aligned.
• if holes are not aligned, loosen cable clamp screw and
align the holes by inserting a pencil or a 1/4" drill bit
through both holes.
o Pull throttle cable up to remove slack and tighten cable
clamp screw Remove alignment pencil or drNtbiL
TO ADJUST CARBURETOR (See Fig. 33)
The carburetor has been preset at the factory and adjust-
ment shouid not be necessary However, minor ad}ust-
ment may be required to compensate fordifferences in fuel,
temperature, altitude or load If the carburetor does need
adjustment, proceed as follows:
in generai, turning the adjusting needles in (clockwise)
decreases the supply of fuel to the engine giving a leaner
fuel/air mixture° Turning the adjusting needtes out (counter-
clockwise) increases the supply of fuel to the engine giving
a richer fuel!air mixture.
IMPORTANT: DAMAGE TO THE NEEDLES AND THE
SEATS ]N CARBURETOR MAY RESULT IF NEEDLE IS
TURNED IN TOO TIGHT
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
bythe cap Do not attempt to remove the iimiter cap, The
Iimitercap can notbe removed without breaking the adjusting
needle.
o Be sure you have a ctean air filter" and the throttle
control cable is adjusted properly (see above),,
• Start engine and allow to warm for five minutes Make
adjustments with engine running and shift/motion control
lever in neutral (N) position,
• Idle speed setting - With throttle control tever in stow
(,,_,) position, engine should idle at 1750 RPM, If
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 adjustment needle in
(clockwise) until engine begins to die and then turn out
(counterclockwise) until engine runs rough. Turn needle
to a point midway between those two positions
• Recheck idle speed. Readjust if necessary
ACCELERATION TEST -
o Move throttle control lever from slow (,_) to fast (._,)
position. If engine hesitates or dies, turn idfe fuel
adjusting needfe out (counterclockwise) 1/8 turn Re-
peat test and cont}nue to adjust, if necessary, until
engine accelerates smoothly.
High speed stop is factory adjusted. Do not adjust -
damage may result.
IMPORTANT: NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH tS FACTORY SET FOR PROPER
ENGINE SPEED OVERSPEEDtNG THE ENGINE ABOVE
THE FACTORY HIGH SPEED SETTING CAN BE
DANGEROUS.. IF YOU THINK THE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
EXPERIENCE TO
ADJUSTMENTS,
CABLE
CLAMP
SPEED CONTROL_-_...,_
BRACKET
MAKE ANY NECESSARY
THROTTLE
LEVER
FIG. 32
IDLE SPEED
ADJUSTING
IDLE FUEL /
ADJUSTING
NEEDLE
FIG. 33
25
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