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SERVUCE AN
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, {oosen cabte 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 in fuel, 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 of fuel 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 the adjusting needle
oBe 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 idle fuel 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. |
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ADJUSTMENTS
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
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.
CLAMP
CABLE',,,_,,,_
SC R EW _..,,_
SPEED
BRACKET_-_._...
THROTTLE
LEVER
FIG. 31
IDLE SPEED
ADJUSTING
IDLE FUEL /
ADJUSTING
NEEDLE
FIG. 32
27