ADJUSTlMENT
GAS
IDL~li
ADJUSTME~T
CLAMP
'I:
/
ADJI.JSTMENT
SCREW
AMBIENT TEMPERATURE
(0
F)
75
70
60
50
40
30
20
10
CHOKE OPENING
(Inches) 9/16
.'
1/2 15/32 7116
3/8
11/32 5/16 1/4
AMBIENT TEMPERATURE
(0
C)
24
21
16 10
4'
-1
....
7
-12
CHOKE OPENING (mm)
14.~9
12.70
11.91
11.11
9.53
8.73
7.94
6.35
GAS~'AIN
GASOLINE
IDLE
ADJUSTMENT
IDL'E
SPEED
Before final adjustment, allow the engine
to
warmup.
To set the
maiO
fuel adjustment, apply a full electrical
load to the generator, carefully turn main adjustment'·
screw in until':engine speed (or
output
frequency)
drops slightly:beloW normal.
Tu.rn
screw back
out
(richer) approximately 1/4 turn
or
until engine speed
(frequency)
r~turns
to normal.
Carbure'oradjus'men'
'should be made after
'he
governor Is
properly adjusted.
Make idle adjustment with no load connected to the
generator.
Use
a tachometer (or connect a
frequency'
meter) to generator output. Slowly turn idle adjusF
ment out
until
engine speed (or generator frequency)
drops slightly t?elownormal. Then turn needle
in
until
speed (or frequency) returns to normal.
FIGURE 18. CARBURETOR ADJUSTMENTS
EARLY
MODELS
HAVE
MAIN
FUEL
ADJUSTMENT
ON
TOP
OF
CARBURETOR
GASOLINE
MAIN
ADJUSTMENT
Set throttle stop screw (located on carburetor throttle
lever)
with
no load connected and while running at
rated speed. Turn stop screw to give
1132
inch
clearance between the screw and pin (Figure 16).
For correct carburetor float clearance, see Figure
17.
Adjustment is made by bending the tab on the float.
CARBURETOR (Gas-GasoUne) ,
Gas carburetor adjustment procedure is the same
as
for
gaSOline.
See
Figu
re
18·
for
location
of
.adjusting
needles.
LOOSEN
THIS
SCREW
AND
ROTATE
THE
ENTIRE
eOVER
ASSEMBLY
,
FIGURE 19. CHOKE. ADJUSTMENT
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