2. Lubricate the release bearing guide bush mounting bolts with sealant "Loctite Frenetanch", the edges of the seal - with grease. Insert the release bearing guide with a new gasket into the front of the crankcase (clutch housing) and screw it on.
3. Install the right side differential bearing outer race at the front of the gearbox housing.
4. Install four bushings in the front of the crankcase to center the intermediate bearing plate.
5. Install the selector lever assembly at the front of the crankcase by inserting the inner lever together with the shaft of the lever assembly inside the crankcase, the gasket and the outer lever from the outside of the crankcase, then fix the lever assembly with a cotter pin connecting the shaft to the outer selector lever.
6. Insert the differential, cotter pin and reverse lock spring into the front of the gearbox housing.
7. Lubricate the connection surface of the intermediate bearing plate with the surface of the front part of the gearbox housing with glue "Loctite Scelmetal".
8. Install the intermediate bearing plate on the surface of the front of the gearbox housing, lubricate the intermediate plate mounting bolts with silicone sealant "Loctite Frenetanch", tighten the bolts to 50 Nm and remove excess adhesive.
9. Attach the gear assemblies together with both shafts to the fork assembly with their axles and insert into the gearbox housing.
10. Insert the selector into the yoke, and then install the yoke so that at the same time the selector pin enters the cutouts of the forks, and the yoke meshes with the teeth with the internal gear selector lever.
11. Compress the selector shaft spring with its two washers and insert from the outside between the selector sleeve and the intermediate plate selector shaft hub.
12. Put a gasket on the selector axle and insert the selector axle from the outside in series into the holes: the outer hub of the intermediate plate selector axle, the springs with plates, the selector holder with the selector and the inner hub of the intermediate plate selector axle. Install the selector pin on its axis.
13. Insert the reverse gear forks and push in the reverse gear axle until it stops.
14. Insert the reverse gear into the recess of the reverse gear forks, reverse gear axle and bushing.
15. Degrease the connecting surface of the front and middle parts of the gearbox housing and lubricate it with a thin layer of silicone sealant (For example, "Framet Autojoint").
16. Install the middle part of the crankcase on the front and tighten the mounting bolts to a torque of 17.5 Nm.
17. Install the two plates securing the output shaft bearing by screwing in two mounting screws.
18. Install the 5th gear on the end of the input shaft (without propping up the gearbox housing), and install the spring washer and O-ring.
19. On the output shaft, install the 5th gear together with the treadmill, needle bearing and support pad.
20. Install the synchronizer assembly at the end of the output shaft (hub-sliding sleeve) 5th gear with forks.
21. Engage 5th gear by moving the synchronizer sleeve, and some other gear to fix the gearbox shafts.
22. Tighten the nut with washer on the end of the output shaft to 137.5 Nm.
23. Shift transmission to neutral position (turn off gear).
24. Drive in the 5th gear pin.
25. Install the rear crankcase cover by tightening the bolts to 17.5 Nm.
26. Install the speedometer drive shaft by screwing its fastening bolt to the gearbox housing.
27. Install the clutch release bearing at the front of the gearbox.
28. Install the axle shaft seals in the gearbox housing. Before installing the axle shafts, the sealing edges of the rings should be coated with grease.