41
The fuel level in the carburettor float chamber should be
within 20-23 mm from joint plane of the float chamber. Adjust
the fuel level by bending lip 3 (Fig. 27). The float should be in
the horizontal position. The valve 5 stroke is adjusted by means
of the lip 2 and should be 1.5 - 2.0 mm.
Slow idling speed of the crankshaft at 700-750 min
-1
is to be
adjusted by means of the screw 1 (Fig. 28) when the engine is
Fig. 26. Fuel pumps of Á9Â type*:
à -inspection hole
1 - casing; 2 - pull rod; 3 - seal; 4 - washer; 5, 14 -springs; 6 - diaphragm; 7 -
discharge valve; 8 - gauze strainer; 9 - gasket; 10 - cover; 11 - screw; 12 - exhaust
valve; 13 -upper casing; 15 - rocker arm; 16 - camshaft eccentric; 17 - rocker arm
shaft; 18 - hand primer lever shaft; 19 - hand primer lever
* The pumps 2105-1106010-50 or 900-1106010 could be also installed
Fig. 27. Carburettor float
and its adjustment:
1 -float; 2 -fuel valve adjust-
ment lip; 3 -level adjustment
lip; 4 -pin; 5 -valve needle;
6 -valve body; 7 -valve washer
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