Contents: Disassembling the carburetor housing…↓ Disassembling the throttle body ↓ Disassembling the carburetor body ↓
View of the carburetor 2105-1107010 from the throttle drive side
1 – air damper; 2 – starting device; 3 – three-arm air damper control lever; 4 – telescopic rod; 5 – micro switch; 6 – throttle valve drive lever; 7 – lever limiting the opening of the second chamber throttle valve; 8 – return spring; 9 – pneumatic drive rod; 10 – pneumatic drive of the second chamber throttle valve
1. Remove return spring 8. Unpin and disconnect the link rod with three-arm lever 3 from the first chamber throttle lever.
2. Disconnect the pneumatic drive rod 9 from the second chamber throttle drive lever.
3. Compress the spring of the telescopic rod 4 and disconnect it from the three-arm lever 3.
4. After unscrewing the fastening screws, detach the cover with the gasket from the carburetor body, being careful not to damage it or the float.
5. After unscrewing the fastening screws, disconnect the throttle body from the carburetor body, being careful not to damage the carburetor fuel-air channel adapter bushings and bushing seats pressed into the body. Carefully disconnect the heat-insulating gasket.
Carburetor Cover Parts 2105-1107010
1 – adjusting screw; 2 – starter cover; 3 – spring; 4 – diaphragm; 5 – diaphragm rod; 6 – starting device housing; 7 – telescopic rod; 8 – air damper axis; 9 – air damper; 10 – carburetor cover; 11 – gasket; 12 – filter; 13 – filter plug; 14 – needle valve seat; 15 – needle valve; 16 – float axis; 17 – float; 18 – gasket; 19 – starting device rod
Disassembling the carburetor housing cover
1. Using a mandrel, carefully push the float axis 16 out of the posts (push towards the rack with a cut) and remove the axle with smooth-nosed pliers. Taking care not to damage the float tongues, remove it with the needle valve 15.
2. Remove cover gasket 11, unscrew needle valve seat 14, unscrew plug 13 and remove fuel filter 12.
3. Disconnect the telescopic rod 7 and the rod 19 of the starting device drive from the lever of the axis 8 of the air damper.
4. Unscrew the two screws securing the housing 6 of the starting device and remove it.
5. Unscrew the three screws securing cover 2 of the device and remove the cover with the adjusting screw 1 and spring 3. Remove the diaphragm 4.
Carburetor throttle body parts 2105-1107010
1 – throttle valve drive lever; 2 – lever limiting the opening of the throttle valve of the second chamber; 3 – bushing; 4 – air damper connection lever; 5 – lever fixed on the axis of the second chamber throttle valve; 6 – spring; 7 – lever connected to pneumatic drive; 8 – throttle body; 9 – return spring of the first throttle valve; 10 – axis of the second throttle valve; 11 – throttle valves; 12 – first throttle valve axis; 13 – limiting bushings; 14 – idle mixture adjustment screw; 15 – sealing ring; 16 – gasket; 17 – forced idle economizer housing; 18 – economizer cover; 19 – idle mixture quantity adjustment screw; 20 – economizer diaphragm; 21 – economizer needle;
Disassembling the throttle body
1. Break off the heads of the limiting bushings 13, unscrew the adjusting screws 14 and 19 and remove the remains of the bushings.
2. Loosen the screws and remove the cover 18 of the forced idle economizer, the diaphragm 20 with the needle 21, the housing 17 of the economizer and the seat 22.
3. At the same time, remove bracket 23 with microswitch 24.
4. Bend back the tab of the lock washer and unscrew the nut securing the levers to the first chamber damper axis.
5. Remove the lock washer, levers 1, 2, 4, 27 with washers and bushing 3 from the first chamber flap axis, and then the pressure spring 26 of the spool valve and spool valve 25.
6. Unscrew the nut securing the levers on the second chamber throttle shaft, remove the levers with washers and spring.
Carburetor body parts 2106-1107010
1 – pneumatic actuator rod of the second throttle valve; 2 – pneumatic drive housing; 3 – diaphragm; 4 – pneumatic drive cover; 5 – fuel jet of the transition system of the second chamber; 6 – fuel jet housing; 7 – small diffuser of the second chamber; 8 – accelerator pump nozzle; 9 – accelerator pump screw valve; 10 – main air jet of the second chamber; 11 – emulsion tube of the second chamber; 12 – main air jet of the first chamber; 13 – emulsion tube of the first chamber; 14 – main fuel jet of the second chamber; 15 – main fuel jet of the first chamber; 16 – accelerator pump adjusting screw; 17 – idle system fuel jet; 18 – fuel jet housing; 19 – accelerator pump return spring; 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 – throttle linkage rod; 26 – Throttle valve return spring bracket
Disassembling the carburetor body
1. Unscrew two screws and remove the pneumatic drive of the second chamber throttle valve. Unscrew three screws securing cover 4 of the pneumatic drive and remove it, the spring and diaphragm 3 with the rod.
2. Unscrew the screw securing the air damper control lever 24, remove the bracket 26, lever and spring 23, disconnect the rod 25 from the lever.
3. Remove the screws securing the cover 21 of the accelerator pump, remove the cover with the lever and diaphragm 2 with return spring 19.
4. Unscrew the main air jets 10 and 12, turn the housing over and, lightly tapping it, shake out the emulsion tubes 11 and 13 from the wells.
5. Unscrew the housings of jets 6 and 18 and remove them together with jets 5 and 17.
6. Unscrew the valve screw 9 and remove the nozzle 8 of the accelerator pump with gaskets, unscrew the adjusting screw 16 of the accelerator pump.
7. Remove small diffusers 7 and 22, unscrew main fuel jets 14 and 15.