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Ew.v
REPLACE
AIR
CLEANER
ELEMENT
CARBURETOR
ADJUSTMENT
(FIGo 31)
Never attempt
to change maximum
engine speed, This is
preset
at the factory
and should only be changed by a quali-
fied service technician who has the necessary equipment.
CAU-
TION:
BEFORE
ANY
ENGINE
ADJUSTMENT,
MAKE
SURE AIR CLEANER
tS CLEAN., SEE PAGE 16, Remove
Air Cleaner Assembly.,
1,, HIGH
SPEED
SETTING
a. With
engine
off,
place Throttle
Control
in "FAST"
posi-
tiono
b_ Loosen
Clamp
Screw., Adjust
Throttle
Cable untitl
holes
"A"
are aligned
in Governor
Control
Plate
and Slide
Plate.
co Tighten
Clamp
Screw.
2o HIGH SPEED MIXTURE
a, Turn
High Speed Mixture
Screw clockwise (f_)
closing
finger tight ONLY, and then turn counterclockwise
(I,"_)
1 - 1/2 turns (Fig. 31)o
NOTE:
VALVES
MAY BE DAMAGED
BY TURNING
THEM TOO FAR°
b. Start Engine and altow to warm for five minutes_ Make
final adjustments
with
Engine running and Gear Shift
Lever in "NEUTRAL"
position°
c, With Throttle
Control
Lever in "FAST"
position, turn
Higt_ Speed Mixture
Screw counterclockwise
(t'_)
un-
til engine runs "rough"
then turn clockwise
(t_)until
engine begins to miss. Turn Screw to a point midway
between these positions°
3, IDLE
MIXTURE
ao With
Throttle
Control
Lever
in "SLOW"
position,
hold
Throttle
Lever
so that
Idle Stop
Screw is against
Carbur-
etor,
turn
Idle Mixture
Screw counterclockwise
(_)
un-
til engine
runs "rough"
and then turn
clockwise
(iql) un-
til
engine
begins
to die_, Turn
idle
Mixture
Screw
to a
point
midway
between
these positions,
4o IDLE
SPEED
SETTING
a,. With Throttle
Control
Lever in "SLOW"
position,
engine
should
idle at 1750
RPM,
If engine
idles too slow, push
Throttle
Control
Lever
above
idle
and turn
Idle Speed
Screw
one turn
clockwise
((-_)_
Set Throttle
Control
Lever
at "SLOW"
Repeat
until
satisfactory
idle
is at-
tained.
b. If engine
idles
too
fast with
Throttle
Control
Lever
in
"SLOW"
position,
push
Throttle
Control
Lever
above
idle and turn
Idle
Speed
Screw
one turn
counterclock-
wise (f"_),
Set Throttle
Control
Lever at I'SLOW",,
Re-
peat until
satisfactory
idle is attained,
IDLE
MIXTURE
IDLE
SCREW
STOP
DO NOT
ADJUST
IDLE
MIXTURE
ADJUSTMENT
HIGH
SPEED
MIXTURE
SCREW
HOLES
"A"
THROTTLE
CABLE,
IOLESPEED
SCREW
PLATE,
GOVERNOR
CONTROL
SLIDE
PLATE
FIGURE 31
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