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SERVICE AND ADJUSTMENTS
ENGINE
TO ADJUST
THRO'I-rLE
CONTROL
CABLE
(See Fig. 32)
The throttle control has been preset at the factory and
adjustment should not be necessary. Checkadjustment
as
described below before loosening cable. If adjustment is
necessary, proceed as follows:
,,
With engine not running, move throttle control lever
from "SLOW" to "CHOKE" posit_on. Slowly move lever
from "CHOKE" to "FAST" position.
,,
Checkthat holes "A" in governorcontro! leverand hole
in governor plate line-up. If holes "A" are not aligned,
Ioosenclamp screw and movethrottle cable until holes
are aligned.
Tighten clamp screw securely.
GOVERNOR
CONTROLLEVER
GOVERNOR
CONTROLPLATE
HOLES"A"
CLAMP
SCREW
THROTTLE
CABLE
FINAL SE-I-rING -
"
Start engine and allow to warm for five minutes. Make
final adjustments with engine running and shift/motion
control lever in "NEUTRAL" position.
,,
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 throttle
lever against
idle speed
screw, turn idle rnixture valve in (clockwise)
until en-
gine beginsto die and then turn out (cou nterclockwise)
until engine runs rough. Turn valve to a point midway
between those two positions.
Release throttle lever.
ACCELERATION
TEST -
•
Move throttle control lever from "SLOW" to "FAST"
position.
If engine hesitates or dies, turn idle mixture
valveout
(counterclockwise)
1/8turn.
Repeattest 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.
OVERSPEEDINGTHE
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,
WHICH HAS
PROPER EQUIPMENT
AND EXPERTENCE
TO MAKE ANY
NECESSARY
ADJ USTM ENTS.
FIG. 32
TO ADJUST
CARBURETOR
(See Fig. 33)
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:
In general, turning idle mixture valve in (clockwise) de-
creases the supply of fuel to the engine giving a leaner fueV
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 IN CARBURETOR MAY RESULT IF SCREW IS
TURNED IN TOO TIGHT.
PRELIMINARY SETTING -
THROTTLE
IDLE SPEED
LEVER
SCREW
J
J
-
Air cleaner assembly must be assembled to the carbu-
retor when making carburetor adjustments ...........
IDLEMIXTURE
.....
"
Be sure the throttle control cable is adjusted properly
VALVE
(see above).
FIG. 33
-
With engine off turn idle mixture valve in (clockwise)
closing it finger tight and then turn out (counterclock-
wise ) 1 full turn.
24
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