3.14.8. Cleaning and check of technical condition

Fuel filter. Wash out the filter in gasoline and blow compressed air. Check a condition of the filter and the condensing conic corbel of a stopper of the filter. If the filter or a stopper are damaged, replace them new.
Float-operated mechanism. Wash out details in acetone or in gasoline. The float should not have damages and any distortions of forms. The mass of a float has to make 11–13 g. On the condensing surfaces of the needle valve and its saddle the damages breaking tightness of the valve are not allowed. The valve has to move freely in the nest, and its ball freely moves and not to hang. Replace faulty details new.
Carburetor cover. Clear a cover and all openings and channels of dirt and oil. Wash out a cover in gasoline or acetone and blow compressed air. Examine the condensing cover surfaces. If damages are found, replace a cover new.
Starting arrangement. Clear all details of the starting arrangement, wash out gasoline and blow compressed air. Examine the details damaged replace new.
Jets and emulsion tubes. Clear jets and emulsion tubes of dirt and resinous deposits. Wash out them acetone or gasoline and blow compressed air.

PREVENTION
It is not allowed to clean jets the metal tool or a wire, and also to wipe jets and other details of the carburetor with cotton wool, fabric or rags as fibers can litter fuel - an emulsion path.
At a strong contamination it is possible to clear jets the needle from a soft tree moistened with acetone.

Carburetor case. Clear the case of dirt and oil. Wash out the case and its channels gasoline or acetone and blow compressed air. If necessary clear channels and emulsion wells special development. Examine the condensed surfaces of the case, at their damage — replace the case new.

Fig. 3-94. Carburetor 2107-1107010 case details: 1 — a rod of a pneumatic actuator of the second butterfly valve; 2 — the pneumatic actuator case; 3 — a diaphragm; 4 — a pneumatic actuator cover; 5 — a fuel jet of transitional system of the second camera; 6 — the case of a fuel jet; 7 — the small diffuser of the second camera; 8 — a spray of the accelerating pump; 9 — the screw valve of the accelerating pump; 10 — the main air jet of the second camera; 11 — an emulsion tube of the second camera; 12 — the main air jet of the first camera; 13 — an emulsion tube of the first camera; 14 — the main fuel jet of the second camera; 15 — the main fuel jet of the first camera; 16 — the adjusting screw of the accelerating pump; 17 — a fuel jet of system of idling; 18 — the case of a fuel jet; 19 — a returnable spring of the accelerating pump; 20 — a diaphragm of the accelerating pump; 21 — cover of the accelerating pump; 22 — the small diffuser of the first camera; 23 — a returnable spring of the lever; 24 — a trekhplechy control lever of the air gate; 25 — draft of communication with a butterfly valve; 26 — an arm of a returnable spring of butterfly valves

Accelerating pump. Clear pump details, wash out them and blow compressed air. Check ease of movement of a ball in the valve screw 9 (see fig. 3-94) and a condition of the condensed surfaces and laying.
Check ease of the movement of mobile elements of the pump (the lever, a roller, diaphragm details). Jammings are not allowed. The diaphragm has to be whole, without deformations. Replace the damaged details new.
Pneumatic actuator of a butterfly valve of the second camera. Clear details, wash out and blow compressed air. Check a condition of a diaphragm, it should not have damages.
Case of butterfly valves and its detail. Clear details and wash out them gasoline or acetone. Examine the details damaged replace.