
Use two screwdrivers to remove the circlip (29) from the timing belt driveshaft shaft (30) on the clutch-side crankcase half.
Note
Take care to avoid scoring the surface of the shaft while removing the circlip.
Unscrew the crankcase half screws on the chain side.




Unscrew the two screws (12) on the clutch side near the vertical cylinder.

Reuse the alternator cover or a service cover with puller 88713.1749 Fitted. Secure cover to crankcase half with some of the original screws and begin separation by turning the central pin of the tool.
Tap the end of the gearbox secondary shaft with a plastic mallet to separate the crankcase halves.
Note
Take care not to lose the shims on the shafts and on the selector drum.

Remove gearbox shafts and gearbox selector drum from the crankcase halves (sect. 9 - 7.2, Removal of the gearbox assembly.
Drive out the crankshaft (l) using a plastic mallet, taking care not to lose the shims.

Remove the timing belt driveshaft (30).

Remove the screws (34), remove the pipes (33) and collect the o-rings (32).

Crankcase halves
Overhaul of the crankcase halvesRemoval of the tail light
Disconnect the connectors (a) and (b) of the tail lights (1) and (13).
Loosen the screws (4) and slide the tail lights (1) and (13) to the rear side;
recover the four spacers (3) and the washers
(14).
...
Checking the idle speed
Check that the bike is provided with electronic control unit, oem intake and
exhaust systems, otherwise fit original
components.
Connect the inserts of the exhaust gas analyser code 88713.1010 To the outlets
on the exhaust pipes, using the fittings
(1).
Warning
Make sure that the thro ...
Refitting the engine
Refitting is the reverse of removal.
Important
Apply recommended grease and tighten the special screws (6) to a torque of
60 nm +/- 5% (sect. 3 - 3, Frame torque
settings).
Tighten the nuts (3) to a torque of 48 nm +/- 5% (sect. 3 - 3, Frame torque
settings).
Warning
For the assembly seque ...