Checking the technical condition and repair of the carburetor

After dismantling, wash all parts in gasoline, blow with compressed air and check their technical condition. The sealing surfaces must not be damaged, warping of the planes is allowed no more than 0.2 mm. Body parts (carburetor body, cap, throttle body) should not have breaks and cracks, stripping of the thread in the holes is not allowed. Replace damaged parts with new ones.

The needle valve should move freely in the seat, have no wear, and the damper ball should move freely and not hang. The tightness of the metal float is tested in a bath of heated water. The mass of the metal float of carburetors 2105-1107010 and 2107-1107010 should be 11-13 g. Replace damaged parts with new ones.

Clean channels and emulsion tubes with special reamers. Clean the jets from resinous deposits with acetone or gasoline. Check the capacity of the jets and compare them with the reference ones. It is not recommended to clean the jets with a metal tool. If they are heavily clogged, clean them with a soft wood needle dipped in acetone. To avoid clogging of the emulsion channels, it is forbidden to wipe the carburetor parts with cotton wool or rags. It is necessary to blow the channels with compressed air in the opposite direction to the direction of movement of the air-fuel emulsion.

Starter and economizer diaphragms must not be torn. For carburetors 2105-1107010 and 2107-1107010, check the reliability of the flaring of the starter rod. The spring size of the starting device must be at least 17.8 mm. Otherwise, replace the parts with new ones.