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ENGINE
TO ADJUST
THROTTLE
CONTROL
CABLE
(See Fig. 33)
The throttle control has been preset at the factory and
adjustment should not be necessary. Check adjustmentas
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 (1\1) position° Siowly move
lever from choke (N) to fast (,_,) position°
°
Checl_to see if hole 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°
•
Pullthrottle cable up to remove slack and tightencable
clamp screw. Remove alignment pencil or drill bit°
TO ADJUST
CARBURETOR
(See Fig. 34)
The carburetor has been preset at the factory and adjust-
ment should not be necessary. However, minor adjust-
ment may be requiredto compensate for differencesinfuel,
temperature, altitude or load. If the carburetor does need
adjustment, proceed as follows:
in general, turning the adjusting needles in (clockwise)
decreases the supply of fuel to the engine givinga leaner
fueVair mixture° Turningthe adjustingneedles out (counter-
clockwise) increases the supply of fuel to the engine giving
a richer fueVair mixture.
IMPORTANT:
DAMAGE
TO THE NEEDLES
AND THE
SEATS
IN CARBURETOR
MAY RESLILT IF NEEDLE
IS
TURNED
IN TOO TIGHT.,
NOTE: The carburetor on this engine is low emission. It is
equipped with an idle fue! adjusting needle with a limiter
cap, which allows some adjustment within the limitsallowed
by the cap. Do not attempt to remove the limiter cap,. The
limitercap cannot be removed without breaking the adjusting
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 minutes. Make
adjustmentswith engine running and shift/motion control
lever in neutral (N) position.
°
Idle s eed settin
- With throttle control lever in slow
(,_i)
position, engine should idle at 1750 RPM. If
engine idles too slow or fast, turn idlespeed adjusting
screw in or out until correct idle is attained°
°
Idle fuel needle settinQ - With throttle control lever in
._.
slow (,_h) position, turn idle fuel adjustment needle in
;:
(clockwise) until engine begins to die and then turn out
(counterclockwise) until engine runs rough. Tum needle
to a poln_midway between [hose two positions.
°
Recheck idle speed_ Readjust if necessary.
ACCELERATION
TEST -
°
Move throttle control lever from slow (,_)
to fast (,_)
position.
If engine
hesitates
or dies, turn idle fuel
adjusting needle out (counterclockwise)
1/8 turn. Re-
peat test and continue
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
IS FACTORY
SET FOR PROPER
ENGINE SPEED.
OVERSPEEDING
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
MAKE
ANY
NECESSARY
ADJUSTMENTS.
CABLE
CLAMP
SCREW
BRACKET
FIG. 33
THROTTLE
LEVER
IDLE SPEED
ADJUSTING
!
IDLE FUEL/
ADJUSTING
NEEDLE
FIG. 34
27
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