
Unscrew and remove the fixing screws (18) and (20) of the complete gear selector lever (21) and collect the spacer (19).
Remove the gearchange mechanism complete with the shaft, spring, and stop plate.

Important
Visually inspect the gear selector claw (14) for wear, particularly around the area where it contacts the selector drum.
If it proves necessary to change components, disassemble the gear selector lever as shown in the exploded view.
Reassemble the gear selector lever orienting the eccentric pin (15), suitably lubricated, in such a way that the lever arm (16) is positioned centrally with respect to the shoulders of the stop plate (23).

Check that the spring (10) is installed correctly as shown in the figure.

Tighten the nut (13) to a torque of 10 nm (min. 9 Nm - max. 11 Nm) (sect. 3 - 3, Engine torque settings).

Gearchange mechanism
Disassembly of gear interlock plunger and pawl assemblyChecking the engine timing
Set the engine to the configuration described for the "checking and adjusting
the valve clearances", previously indicated.
Install tool 88765.1188 (G) in the spark plug bore to determine the piston tdc,
the gauges (h) on the tool 88765.1518
And the timing check tool (degree wheel (l) 887 ...
Refitting the starter motor gear
Position the washer (20) and the gear (19) in the pin (21) and take the pin
into contact with the crankcase half.
...
Removal of the air filters
Work on the vehicle right side, loosen screws (3) that secure the intake duct
(2) to the airbox, and the radiator retaining
screw (a); recover the washer (b).
Remove the intake duct (2).
Proceed in the same way to remove the lh intake duct (6), and disconnect the
connector (c) ...