Remove the air filter.
Fully close the choke, blocking the throttle control sector.
Disconnect the air hose from the air damper fitting and connect a vacuum pump to the fitting.
Apply a vacuum of 400 mm Hg to the air damper diaphragm.
Measure clearance «A» between the air damper and the air nozzle, which should be within 1.30-1.80 mm.
In the event of a deviation from the norm, bend the adjusting foot of the connecting rod to the required angle.
Automatic carburetor starter: 1 - body of the automatic starting device; 2 - wire going to the block of the heating element of the bimetallic spring; 3 - installation marks; 4 - pneumatic actuator of the air damper; 5 - pneumatic drive of the throttle valve of the 1st chamber; 6 - air damper.