To refit the gearbox components follow the procedure under sect. 9 - 9.2, Reassembly of the crankcase halves, relating to reassembly of the engine crankcase.
As a final practical test, ensure that with the gearbox in neutral the front coupling dogs (a) of sliding gears (b) are equidistant on both sides with respect to the corresponding coupling dogs on the fixed gears (c).
Check also that there is always a small amount of clearance between fork (d) and relative groove (e) on sliding gear (b) when engaging the gears.


Reassembly of the gearbox shafts
Flywheel - alternatorOverhauling the rear wheel
Inspect the condition of the rear wheel.
As the wheel rim has no bearings, it should be supported using the service tool
code 88713.2951.
Note
This service tool can also be used to install the wheel on a balancing
machine.
Overhauling the wheel
Inspect the wheel as described below.
...
Overhaul of the crankcase halves
Carefully examine the engine crankcase halves.
Check that the surfaces of the crankcase halves are perfectly flat using a
reference surface.
Check that the bearings (1) and (18), and the bushings (2) and (17) are in
optimum conditions. Note that the main
bearings must always be changed in p ...
Refitting the alternator-side crankcase cover
Before the assembly make sure that the water pump unit is fitted on the
generator cover (sect. 9 - 3.3, Refitting the
water pump).
If bearing (27) has been removed, lubricate its seat with specified grease to
fit it on the generator cover (13).
Fit bearing completely in its seat and orien ...