View of the carburetor 2105-1107010 from the throttle actuator side
1 - air damper; 2 - starting device; 3 - three-arm air damper control lever; 4 - telescopic rod; 5 - microswitch; 6 - throttle actuator lever; 7 - a lever that limits the opening of the throttle valve of the second chamber; 8 - return spring; 9 – pneumatic actuator rod; 10 - pneumatic throttle valve of the second chamber
1. Remove the return spring 8. Unpin and disconnect the connection rod with the three-arm lever 3 from the throttle valve lever of the first chamber.
2. Disconnect the rod 9 of the pneumatic actuator from the throttle actuator lever of the second chamber.
3. After compressing the telescopic rod spring 4, disconnect it from the three-arm lever 3.
4. Having unscrewed the fastening screws, disconnect the cover with the gasket from the carburetor body, being careful not to damage it and the float.
5. Having unscrewed the fastening screws, disconnect the throttle body from the carburetor body, being careful not to damage the adapter bushings of the carburetor fuel-air channels and bushing sockets pressed into the body. Carefully remove the thermal insulation pad.
Carburetor cover parts 2105-1107010
1 - adjusting screw; 2 - starter cover; 3 - spring; 4 - diaphragm; 5 - diaphragm rod; 6 - body of the starting device; 7 - telescopic rod; 8 - axis of the air damper; 9 - air damper; 10 - carburetor cover; 11 - gasket; 12 - filter; 13 - filter plug; 14 - needle valve seat; 15 - needle valve; 16 - the axis of the float; 17 - float; 18 - gasket; 19 - thrust starting device
Disassembly of the carburetor body cover
1. Using a mandrel, carefully push the float axle 16 out of the racks (push towards the rack with a cut) and remove the axle with smooth nose pliers. Taking care not to damage the float tongues, remove it with the needle valve 15.
2. Remove the cover gasket 11, unscrew the needle valve seat 14, unscrew the plug 13 and remove the fuel filter 12.
3. Disconnect the telescopic rod 7 and the rod 19 of the starter drive from the lever of the axis 8 of the air damper.
4. Unscrew the two screws securing the case 6 of the starting device and remove it.
5. Unscrew the three screws securing the cover 2 of the device and remove the cover with the adjusting screw 1 and the spring 3. Remove the diaphragm 4.
Carburetor throttle body parts 2105-1107010
1 - throttle actuator lever; 2 - a lever that limits the opening of the throttle valve of the second chamber; 3 - bushing; 4 - lever connection with the air damper; 5 - a lever fixed on the axis of the throttle valve of the second chamber; 6 - spring; 7 - lever connected to the pneumatic actuator; 8 - throttle body; 9 - return spring of the first throttle valve; 10 - axis of the second throttle valve; 11 - throttle valves; 12 - axis of the first throttle valve; 13 - restrictive bushings; 14 - screw for adjusting the composition of the idle mixture; 15 - sealing ring; 16 - gasket; 17 – forced idle economizer housing; 18 – economizer cover; 19 - screw for adjusting the amount of idle mixture; 20 – economizer diaphragm; 21 – economizer needle;
Disassembly of the throttle body
1. Break the heads of the restrictive sleeves 13, unscrew the adjusting screws 14 and 19 and remove the remnants of the sleeves.
2. Loosen the screws and remove the forced idle economizer cover 18, diaphragm 20 with needle 21, economizer body 17 and seat 22.
3. Simultaneously remove bracket 23 with microswitch 24.
4. Bend the tab of the lock washer and unscrew the nut securing the levers on the axis of the damper of the first chamber.
5. Remove the lock washer, levers 1, 2, 4, 27 with washers and bushing 3 from the damper axis of the first chamber, and then the compression spring 26 of the spool and spool 25.
6. Unscrew the nut securing the levers on the throttle valve axis of the second chamber, remove the levers with washers and spring.
Carburetor body parts 2106-1107010
1 – a rod of a pneumatic drive of the second butterfly valve; 2 – pneumatic actuator housing; 3 - diaphragm; 4 – pneumatic drive cover; 5 - fuel jet of the transition system of the second chamber; 6 - fuel jet body; 7 – small diffuser of the second chamber; 8 - accelerator pump atomizer; 9 - screw-valve of the accelerating pump; 10 - the main air jet of the second chamber; 11 - emulsion tube of the second chamber; 12 - the main air jet of the first chamber; 13 - emulsion tube of the first chamber; 14 - the main fuel jet of the second chamber; 15 - the main fuel jet of the first chamber; 16 - adjusting screw of the accelerator pump; 17 - fuel jet of the idle system; 18 - fuel jet housing; 19 - return spring of the accelerator pump; 20 - accelerator pump diaphragm; 21 - accelerator pump cover; 22 - small diffuser of the first chamber; 23 - lever return spring; 24 - three-arm air damper drive lever; 25 - thrust connection with the throttle; 26 - throttle return spring bracket
Dismantling the carburetor body
1. Unscrew the two screws and remove the second chamber throttle actuator. Unscrew the three screws securing the cover 4 of the pneumatic drive and remove it, the spring and the diaphragm 3 with the stem.
2. Unscrew the screw securing the lever 24 of the air damper control, remove the bracket 26, the lever and the spring 23, disconnect the rod 25 from the lever.
3. Unscrew the screws securing the cover 21 of the accelerator pump, remove the cover with the lever and the diaphragm 2 with the return spring 19.
4. Unscrew the main air jets 10 and 12, turn the body over and, tapping it lightly, shake out the emulsion tubes 11 and 13 from the wells.
5. Unscrew housings 6 and 18 of the jets and remove them together with jets 5 and 17.
6. Unscrew the valve-screw 9 and remove the sprayer 8 of the accelerator pump with gaskets, unscrew the adjusting screw 16 of the accelerator pump.
7. Take out small diffusers 7 and 22, turn out the main fuel jets 14 and 15.