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ENGBNE
NTS.............................................:-..............
TO ADJUST THROTTLE CONTROL CABLE
(See Fig. 34)
The throttle control has been preset at the factory and
adjustment should notbe necessary. Checkadjustment as
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" position° Slowly move lever
from "CHOKE" to "FAST" position..
o Checkthathotes"A" in governorcontrotfeverandhote
in governor ptate tine-up. If holes "A" are not aligned,
loosen clamp screw and move throttle cable until holes
are aligned. Tighten clamp screw securely.
GOVERNOR
CONTROL PLATE
GOVERNOR
CONTROL LEVER
\
/
CLAMP THROTIFLE
HOLES "A" SCREW CABLE
{=IG. 34
TO ADJUST CARBURETOR (See Fig. 35)
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 Ioad_ If the carburetor does need
adjustment, proceed as follows:
In general, turning idle mixture valve in (clockwise) de-
creases the supply of fuel to the engine giving a leaner fuel/
air mixture. Turning the idle mixture valve out (counter-
clockwise) increases the supply of fuel to the engine giving
a richer fuel/air mixture
IMPORTANT: DAMAGE TO THE NEEDLE VALVE AND
THE SEAT tN CARBURETOR MAY RESULT IF SCREW 1S
TURNED 1N TOO TIGHT
PRELIMINARY SETTING -
• Aircleaner assembly must be assembled to the carbu-
retor when making carburetor adjustments..
• Be sure the throttle control cable is adjusted properly
(see above)°
° With engine off turn idle mixture valve in (clockwise)
closing it finger tight and then turn out (counterclock-
wise) 1 full 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" position.
o Move throttle control lever to "SLOW" position, With
finger, rotate and hold throttle lever against idle speed
screw,, Turn idle speed screw to attain 1750 RPM,
• While still holding tflrottle lever against idle speed
screw, turn idle mixture valve in (clockwise) until en-
gine begins to die and then turn out (counterclockwise)
until engine runs rough,. Turn valve to a point midway
between those two positions,, Release throttle lever.
ACCELERATION TEST -
o Move throttle control lever from "SLOW" to "FAST"
position° If engine hesitates or dies, turn idle mixture
valve 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 WITH 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 ENGfNE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER, WHICH HAS
PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY
NECESSARY ADJUSTMENTS,
THROTTLE LEVER,
SPEED SCREW
IDLE MIXTURE VALVE
FIG, 35
23