Vaz -21213 Repair Manual page 54

Fig.2-90. Setting the fuel level in float barrel:
1 - float; 2 - carburettor cover; 3 - gasket; 4 - gauge to check the float position;
5 - needle valve
Part throttle enrichment unit (economizer). The
diaphragm must be integral and have no damages. Renew the
diaphragm complete with the pushrod when the pushrod length
(the head included) is less than 6.0 mm.
Carburettor - reassembly
Reassembly of the carburettor is a reverse of the dismantling
procedure. Special attention should be drawn to the following.
The float must freely turn on its pivot pin, there should be no
conflict with the barrel walls.
The needle valve must freely operate in its seating, without
warping or seizure; the tightening torque for the needle valve
seat is 14.7 N•m (1.5 kgf•m).
The tightening torque for the solenoid cutoff valve is 3.68
N•m (0.4 kgf•m).
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Fig. 2-91. Throttle stop screw:
1 - throttle stop screw; 2 - idle mixture adjustment screw; 3 - sealing ring; 4 -
adjusting screw cap
Check the jet marking and consult Table 2-2 to prevent the
jet confusion when refitting.
Before refitting pivot pit 19 (Fig.2-88), apply sealant ìÉ-9 on
the pivot end and over 1-1.5 end turns of thread.
To reassemble the accelerator pump, first hand start the
cover retaining screws, press the lever full way to stop, tighten
the screws and release the lever.
Carburettor - adjustment and checks
Setting fuel level in float chamber. The adequate fuel level
for proper carburettor operation is ensured by correct fitting of
good cut-off valve components.
Correct fitting of float 1 (Fig.2-90) is checked with gauge 4.
To do it, locate it normal to cover 2, which should be held hori-
zontally with the floats up. The clearance between the gauge
(over its contour) and floats must be 1 mm as a maximum.
When necessary, adjust by means of bending the float tab or
levers. The locating tab face must be normal to needle valve 5
pivot and have no evident dents or cuts.
Choke control unit adjustment. When turning lever 4 (Fig.
2-86) of choke 5 control unit full way anticlockwise, choke must
be completely closed by spring 7. If not, remedy the situation.
With the choke fully closed, press choke control rod 3 to its
stop. This results in choke 5 opening to 3.0 mm (starting clear-
ance B). Adjust the clearance using screw 2.
Primary throttle 12 with the choke fully closed, should be
open to 1.1 mm (starting clearance ë). Using screw 10, adjust
the clearance as necessary.
Carburettor linkage adjustment. With fully depressed throt-
tle pedal 7 (Fig.2-87) the primary throttle must be wide open and
rod 15 must have no further travel. With pedal 7 released the