A - carburetor cover
B - housing of the automatic device for enriching the combustible mixture during start-up
C - bimetallic spring housing
D - stage II idle jet
E - vacuum regulator of the second chamber
F - stepper motor
G - CO content adjustment screw
H - accelerator pump
J - economizer valve
K - fuel injection device behind the throttle valve
L - float
M - emulsion tube of stage I (first chamber)
N - idle jet stage I (first chamber)
P - float needle valve
Q - mesh filter
R - emulsion tube stage II (second chamber)