Subaru 1600 Service Manual page 141

To electronic control module
t
,
Fig • .4-43 .
To diaphragm
Plunger
Valve stroke
AS-497
3) Adjustment for Interlock of
Primary and Secondary
Throttle Valves
The primary and secondary throttle
valves are interlocked so that the
secondary throttle valve starts to open
when the primary throttle valve is
opened to a certain degree. This open-
ing angle of the primary throttle valve
and the clearance G2 should be as
follows.
G
2
6.00 mm (0.2362 in)
t t
Secondary side Primary side
26 mm (1.02 inl dia.
1 Adjust plate
2 Throttle lever
3 Return plate
4 Primary throttle valve
AS-175
Fig.4-44 Primary and secondary
throttle valve interlock
FUEL SYSTEM
4) Fuel Level
The fuel level in the carburetor can be
checked through the sight glass of the
float chamber. A fuel level within a
range of 1.5
mm
(0.059 in) above or
below the point mark is normal. If the
fuel level is out of this range, adjust as
specified in the following paragraphs
1) and 2).
NOTE:
After completion of fuel level adjust-
ment, confirm it through the sight
glass.
1 Float seat
2 Float stopper
3 Float
Fig. 4-45
AB·027
1) Adjusting float level
Remove the choke chamber and turn
it upside down. If the clearance H
indicated in the figure is as specified
below when the float seat comes in
contact with the valve stem, the float
level is normal. If not, adjust the level
by bending the float seat.
Clearance H
11.0 - 11.5 mm
(0.433 - 0.453 in)
2) Adjusting effective needle valve
stroke
If the clearance L between the float
seat and valve stem with the float fully
lifted is as specified below, the effec-
tive stroke is normal. If not, adjust by
bending the float stopper.
Clearance
L
1.3 -1.7 mm
(0.051 - 0.067 in)
4-19
AS-499
Fig. 4-46
8. Installation
1) Install carburetor with two gasi,<ets
and an insulator on intake manifold.
2) Connect accelerator cable
Q)
to
throttle lever.
3) Connect harness connector
@.
4) Install duty solenoid valve con-
nector clamp
G).
(All California models and non-4WD
of non-California models)
5) Connect hoses to carburetor.
a. From thermo vacuum valve (II) to
main diaphragm
@.
(All Canada models and 4WD of
non-California models)
b. From solenoid valve (III) to main
diaphragm
@.
(All California models and non-
4WD of non-California models)
c. From control air cleaner to second-
ary main air bleed.
(Non-4WD of non-California models
- High altitude configuration only)
d. From air cleaner to secondary main
air bleed.
(4WD of non-California models-
High altitude configuration only)
6) Connect hoses for duty solenoid
valves.
(All California models and non-4WD
of non-California models)
a. From duty solenoid valve (slow) to
carburetor
@.
b. From duty solenoid valve (main) to
carburetor
0).
7) From air cleaner to carburetor
@,(1).
(4WD of non-California models - High
altitude configuration only)
8) Connect vacuum hoses.
a. From intake manifold to main
diaphragm
@.
b. From distributor to advance port
(2).
J
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