Position the gearbox drum selector fork in the centre of the gear rollers.
Position the gear selector lever (21) together with control shaft, spring and plate into the chain-side crankcase half.
Insert the screws (18) and (20) with the spacer (19).
Temporarily fit gear change lever (or a service lever) and engine pinion and shift to neutral gear.

Place the tool 88713.3334 On the gear claw.

Place the tool 88713.3334 Inserting the clutch rod (e) into the tool hole, block the pin (f) of the tool in the gear claw pressing with the hand in the point (g) (claw stroke lock plate) towards the right, as shown in photo.


Tighten the screw (18) in this position to a torque of 36 nm (min. 34 Nm - max. 38 Nm) and screw (20) to a torque of 16 nm (min. 15 Nm - max. 17 Nm) (sect. 3 - 3, Engine torque settings).
Warning
Make sure that the gear selector lever fixing screws (18) and (20) are those indicated in our spare parts catalogue. They Must be screws of class 12.9 In order to respect the tightening torque indicated above (sect. 3 - 3, Engine torque settings).
Start tightening the first screw (18), and continue with screw (20).



Remove service tool no.
Check that the pin (h) placed on the gear drum is axially to the notch (l) on the gear claw (with gear in neutral).

With the gearbox in neutral, check that the lever travel is the same when shifting up and down. The same should apply when a gear is engaged.
Operate the gearchange lever and turn the front sprocket at the same time to check that all the gears engage when shifting up and down.
Remove the previously installed lever and sprocket.

Refitting the gear interlock plunger and pawl assembly
Gearbox shaftsTiming system
Desmodromic (type) with four valves per cylinder,
operated by eight rocker arms (4 opening rockers and 4
closing rockers) and two overhead camshafts. It is operated
by the crankshaft through spur gears, belt rollers and toothed
belts.
Desmodromic timing system (fig. 159)
Opening (or upp ...
Reassembling the frame and the lateral footrests
Apply the recommended grease to the thread of the pins (9) and of the nuts
(8).
Place the frame (1) and the brackets (2) and (3) on the engine block. Start the
pins (9) by holding the nuts (8) and insert
without tightening the screws (6) into the adjusters (4).
Position and fix the rear s ...
Removing outer components
Note
The following removal operations are required in order to renew and/or
clean the crankcase halves. If the original
crankcase halves are to be reused, then the removal of these components is not
essential.
Unscrew the screw (17) and remove the oil breather valve (1) with the o-rings
...