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SERVUCE AN ADJUSTMENTS
ENGINE
TO ADJUST THROTTLE CONTROL CABLE
(See Fig. 31)
The throttle control has been preset at the factory and
adjustment should notbe necessary_ Checkadjustmentas
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 posit{on
. Check to see if hole in throttle {ever and hole in speed
control bracket are aligned°
• if ho{es are not aligned, {oosencabte clamp screw and
align the holes by inserting a pencil or a 1/4" ddll bit
through both holes.
• Putl throttle cab{e up to remove slack and tighten cable
clamp screw.. Remove alignment pencil or drill bit.
TO ADJUST CARBURETOR (See Fig, 32)
The carburetor has been preset at the factory and adjust-
ment should not be necessary_ However, minor adjust-
ment may be required to compensate for differences infuel,
temperature, altitude or load. If the carburetor does need
adjustment, proceed as follows:
tn general, turning the adjusting needles in (clockwise)
decreases the supply of fuel to the engine giving a leaner
fuel/air mixture° Turning the adjusting needles out (counter-
clockwise) increases the suppty offuel to the engine giving
a richer fuel/air mixture
IMPORTANT: DAMAGE TO THE NEEDLES AND THE
SEATS iN 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 [imiter
cap, which altows some adjustment within the timits allowed
by the cap. Do not attempt to remove the limiter cap. The
limiter cap cannot be removed without breaking theadjusting
needle
o 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 minute& Make
adjustments with engine running and shift/motion control
lever in neutral (N) position.
. ldle speed setting - With throttle control lever in slow
position, engine should idle at 1750 RPMo 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 idlefuel adjustment needle in (clock-
wise) until engine begins to die and then turn out
(counterclockwise) until engine runs rough..Turn needle
to a point midway between those two positions.
o Recheck idle speed. Readjust if necessary.
ACCELERATION TEST -
= Move throttle controlleverfrom 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 acceler-
ates smoothly..
High speed stop is factory adjusted Do not adjust -
damage may result.
IMPORTANT: NEVER TAMPER WLTH 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 ENGtNE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
EXPERIENCE TO MAKE ANY NECESSARY
ADJUSTMENTS.
CABLE ',,,_,,,_
CLAMP
SCREW _..,,_
SPEED CONTROL"-_
BRACKET _-_._...
THROTTLE
LEVER
FIG. 31
IDLE SPEED
ADJUSTING
IDLE FUEL /
ADJUSTING
NEEDLE
FIG. 32
27