Aisan carburetor diagram: 1 - needle valve; 2 - float; 3 - main fuel jet of the 1st chamber; 4 - main air jet of the 1st chamber; 5, 9 - sprayers; 6 - throttle valve of the 1st chamber; 7 - main fuel jet of the 2nd chamber; 8 - main air jet of the 2nd chamber; 10 - throttle valve of the 2nd chamber; 11 - air damper; 12 - idle fuel jet; 13 - idle air jet; 14 - idle fuel channel; 15 - quality adjustment screw (composition) mixtures; 16 - slot of the transition system of the 1st chamber; 17 - economizer channel piston; 18 - economizer valve power modes; 19 - diaphragm accelerator pump; 20 - accelerator pump drive cam; 21, 22 - check ball valves; 23 - accelerator pump sprayer; 24 - throttle actuator of the 2nd chamber.