Location of transmission components
1. Back cover (5 speed gearbox); 2. Locknut (5 speed gearbox); 3. Limiter (5 speed gearbox); 4. Spring pin (5 speed gearbox); 5. Gear shift fork (5 speed gearbox); 6. Synchronizer (5 speed gearbox); 7. Locknut (5 speed gearbox); 8. Synchronizer ring (5 speed gearbox); 9. 5th gear (5 speed gearbox); 10. Gear bushing (5 speed gearbox); 11. Primary gear (5 speed gearbox); 12. Locking bolt; 13. Guide bolt; 14. Locking bolt with spring and ball; 15. Assembling the transmission housing; 16. Magnet; 17. Reverse shaft; 18. Intermediate reverse gear; 19. Locking bolt; 20. Gearshift rod (5th and reverse) and brace; 21. Backstage engagement; 22. Spring pin; 23. Shaft of a two-arm lever; 24. O-ring; 25. Assembly of a two-arm lever; 26. Assembly of forks of inclusion of transfers and a rod; 27. Steel ball; 28. Spring; 29. Assembling the input shaft gears
Transmission housing and gear selector components
1. Bearing outer ring; 2. Oil seal; 3. Cup bearing; 4. Bearing support; 5. Bolts; 6. Guide plate; 7. Bushings; 8. Bolt; 9. Shift lever; 10. Spring pin; 11. Roller leash; 12. Case; 13. Spring (5 speed gearbox); 14. Backstage switch (5 speed gearbox); 15. Lever roller leash; 16. Oil seal; 17. Bolts; 18. Breather cover; 19. Breather; 20. Bolts; 21. Assembling the speedometer drive; 22. O-ring; 23. Spring pin; 24. Driven gear; 25. Speedometer drive cover; 26. Input shaft seal; 27. Bearing outer ring; 28. Spring pin; 29. Axis of the lever of inclusion of a backing; 30. Reversing lever; 31. Drain plug and washer; 32. Bolt and washer; 33. Bearing outer ring; 34. Spring washer; 35. Adjusting gasket; 36. Bearing support; 37. The outer ring of the bearing; 38. Adjusting gasket; 39. Oil seal; 40. Reversing light switch; 41. Lubrication channel
1. Unscrew and remove the back cover (5 speed gearbox).
2. Using a punch, drive the blocking rims of the locknuts out of the grooves (5 speed gearbox).
3. Carefully block the teeth of the gears with a screwdriver or similar tool and remove the locknuts (photo).
Insert a screwdriver into the teeth of the gear to block the shaft | 
Make sure the screwdriver does not slip out when removing the locknuts |
4. Remove the 5th gear fork mounting pin and the fork itself (photo).
Knock out the shift fork retaining pin with a hammer and punch
5. Remove the 5th gear limiter, synchronizer assembly, synchronizer blocking ring, gear bushing and gear itself.
6. Remove the retaining bolt from the transmission case (photo).
Remove the lock bolt
7. Remove the guide bolt from the crankcase (photo). Remove the stop bolt, ball and spring.
Remove the guide bolt from the crankcase
8. Unscrew the reversing lamp wiring connector from the crankcase.
9. Mark the location of the wiring clamp for ease of re-installation and remove the transmission bolts.
10. Carefully separate the crankcase halves (photo).
Use two screwdrivers to separate the transmission case halves | 
Carefully remove half of the crankcase from the shafts |
11. Remove the lubrication channel of the 5th gear (photo).
Use a scraper to remove the 5th gear oil passage
12. Remove the magnet from the crankcase.
13. Remove the reverse gear shaft and the gear itself (photo).
Remove the reverse shaft and remove the gear
14. Remove the 5th gear and reverse lock bolt (photo).
Remove the 5th gear and reverse lock bolt
15. On models with a 4-speed gearbox, remove the backstage and reverse lever assembly by setting the driver roller lever to the neutral position.
On models with a 4-speed transmission, remove the backstage and reverse lever assembly (Chapter 5)
16. Remove the 5th gear and reverse engagement rod (photo).
Use a screwdriver to remove the 5th gear and reverse shift rod
17. Remove the 5th gear and reverse gear (photo).
Remove the 5th gear and reverse gear
18. Knock out the fixing pin of the two-arm lever and remove the lever axle (5 speed gearbox) (photo).
Using a punch, knock out the mounting pin of the two-arm lever | 
Remove the axle of the two-arm lever |
19. Remove the two-arm lever assembly by moving the driver pin to release the lever (5 speed gearbox) (photo).
Remove the two-arm lever by moving the shift rod
20. After making sure that the end of the locking sleeve is flush with the end of the control lever, turn the stem of the forks counterclockwise until it stops (photo).
Turn stem counterclockwise
21. Pull out the shift rod. You may need to remove the blocking ball.
22. Knock out the mounting pin from the shift rod (photo).
Use a punch to drive the mounting pin out of the stem
23. Set the transmission to the 4th gear position by moving the top shift fork up (photo).
Set the transmission to 4th gear by moving the shift fork up
24. Carefully withdraw the shift rod from the crankcase. A steel ball will fall out of the axis of the reverse gear lever.
25. Remove the output shaft and fork assembly from the transmission case (photo).
Remove the output shaft assembly
26. Remove the primary gear assembly.
27. Remove differential assembly (photo).
Lift the differential assembly out of the transmission case
28. Remove the switch of a control lamp of a choice of 5th transfer or the switch of a control lamp of a choice of neutral position.
29. Remove the seals and bearing rings of the input shaft.
30. Remove the bearing support from the transmission case.
31. Unscrew and remove the guide plate and the driver roller lever.
32. Push out the lever mounting pin, making sure that the gear selector lever is in the center position.
33. Remove the drive roller cover from the transmission housing and remove the roller (photo).
Remove cover and leash roller
34. Remove the bushing with the backstage engagement spring.
35. Carefully remove the bearing rings (photo).
Knock out the bearing ring
36. Remove the shift rod seal from the crankcase.
37. Remove the drive shaft seals from the crankcase by knocking them out with a hammer and punch.
38. Remove the differential bearing race.
39. Remove the breather deflector.
40. Remove the control lever spring.