SE
EA
DAD,
ENGINE
TO ADJUST
THRO_LE
CONTROL
CABLE
(See Fig. 31 }
The throttle control has been preset at the factory and
adjustment should not be necessary
Check adjustment as
described below before loosening cableo If adjustment is
necessary, proceed as follows:
o
With engine not running, move throttle control lever
from slow o choke positiono Slowly move lever from
choke to fast position.
o
Check to see if hole in throttle lever and hole in speed
control bracket are aligned.
o
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.
o
Pull throttle cable up to remove slack and tighten cable
damp 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, a!titude or Ioado 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 leaner
fuel/air mixture. Turning the adjusting needles out (counter-
clockwise) increases the supply 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 limiter
cap, which allows some adjustment within the limits allowed
by the cap. Do not attempt to remove the limiter cap. The
Iimiter cap 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
adjustments with engine running and shift/motion control
lever in neutral (N) position.
o
Idle speed setting - With throttle control lever in slow
position, engine should idle at 1750 RPM.
If engine
idles too slow or fast, turn idle speed adjusting screw in
or out until correct idle is attained.
o
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 tWQ positions.
•
Recheck idle speed. Readjust if necessary.
ACCELERATION
TEST -.
o
Move throttle
control lever from sJow to fast position.
If
engine hesitates
or dies, turn idJe fueJ adjusting
needle
out
(counterclockwise)
t,/8 turn.
Repeat
test and
continue
to adjust,
if necessary,
until engine
acceler-
ates smoothly.
High
speed
stop
is factoqi
adjusted.
Do not adjust
-
damage
may result.
_MPORTANT:
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.
tF YOU THINK THE ENGINE-GOVERNED
HtGH
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. 31
THROTTLE
LEVER
IDLE SPEED
ADJUSTING
SCREW _
J I
iDLE FI
ADJUSTING
NEEDLE
FiG. 32
26