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 - alternatorAdjusting the chain tension
Make the rear wheel turn until you find the position where chain is tightest.
Set the vehicle on the side stand. Push down
the chain at the point of measurement and release. Measure the distance between
the "aperture" upper profile and pin
centre.
The read distance must be: 9 to 11 mm.
...
Overhaul of the connecting rods
Make the following dimensional checks on the connecting rods:
Clearance with gudgeon pin on assembly.
In the event of excessive wear (sect. 3 - 1.1, Crankshaft), replace the
connecting rod.
The small end bushing must be in good condition and firmly driven into its seat.
Check for para ...
Timing system
Central external cover
Air filter
Horizontal cylinder timing belt cover
Screw
Filter support
Screw
Washer
Nut
Tensioner pulley assembly
Circlip
Camshaft pulley
Tensioner pin
Idler pulley assembly
Timing belt
Nut
Key
Spacer
Camshaft pulley
Driveshaft pulley ...