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TO ADJUST
CHOKE
CONTROL
(See
Figs. 37 and 38)
The choke control has been preset at the factory and
adjustment should not be necessary° check adjustment as
described below before loosening cable, If adjustment is
necessary, proceed as follows:
-
.
With engine not running, move choke control (located
on clash panel) to full choke (N) position,
o
Remove air cleaner cover, filter and cartridge plate to
expose carburetor choke (See "AfR FILTER" in the
Customer Responsibilities
section of this manual),,
•
Choke should be closed.
If it is not, loosen casing
clamp screw and move choke cable until choke is
completely closed,
Tighten casing clamp screw se-
curelyr
',
Reassemble air cleaner.
CLOSED FOR
FULL
FIG. 38
TO ADJUST
CARBURETOR
(See
Fig, 37)
The carburetor has been present at the factory and adjust-
ment should not be necessary_ However, minor adjustment
may be required to compensate
for differences
in fuel
temperature, altitude or Ioad_ 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 giving a {eaner
fue!!air mixture Turning the adjusting need{es out (coun-
terclockwise)
increases the supply of fuel to the engine
giving a richer fuel/air mixture.
IMPORTANT:
DAMAGE TO THE NEEDLES AND THE
SEATS tN CARBURETOR MAY RESULT IF SCREW IS
TURNED tN TOO TIGHT
PRELIMINARY
SETTING -
-
Be sure you have a clean air filter, and the throttle
control cable is adjusted properly (see "TO ADJUST
THROTTLE
CONTROL CABLE
in the Service and
Adjustments section of this manual)
.
With engine off turn idle fuel adjusting needle in (clock-
wise) closing itfinger tight and then turn out (counter-
clockwise) ! turn
FINAL SETTING -
o
Start engine and allow to warm for five minutes
Make
final adjustments with engine running and shift/motion
control lever in neutral (N) position
"
The high idle is set at the factory and cannot be
adjusted.
=
Idte speed setting - With throttle control lever in slow
(.,_)
position, engine should idle at 1200 RPM, If
engine idles too slow or fast, turn idle speed adjusting
screw in or out unti_ correct idle is attained.
•
Idle fuel needle setting - With throttle control lever in
slow (._,)
position, turn idie fuel adjusting needle in
(clockwise) L, n til engine speed decreases
and then
turn out (counterclockwise)
approximately 3/4 turn to
obtain the best low speed performance
o
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 tS 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
27
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