Ducati Diavel Service Manual: Removal of the gear selector lever
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
Return spring
Washer
Special screw
Gear pawl assembly
Interlock plunger holder
Sealing washer
Detent ball spring
Ball
Circlip
Selector claw return spring
Shim washer
Ring
...
Disassembly of gear interlock plunger and pawl assembly
Unscrew the interlock plunger screw (5) and remove the seal (6), spring (7)
and the detent ball (8).
Unscrew the clutch-side crankcase half screw (3) and remove the pawl (4),
washer (2) a ...
Other materials:
Reassembly of the crankcase halves
The crankcase halves must be in good condition and perfectly clean. The
mating surfaces must be perfectly flat and free
from burrs.
Overhauling the alternator-side crankcase half
The following parts must be present on the internal side of the crankcase
half:
Gearbox secondary shaft bearin ...
Refitting the cylinder head assemblies
Warning
To prevent oil leaks past the contact area between cylinders and
crankcase, each time the head is removed, cylinder and
piston must be removed as well to clean the mating faces of crankcase and
cylinder and restore the spoiled gaskets and
o-rings and apply again liquid sealant (sect. ...
Fuel, lubricants and other fluids
Important
Do not use additives in fuel or lubricants.
Engine oil
A good quality engine oil has special properties. Use only a highly detergent
engine oil with certified se, sf or sg or
higher service ratings as marked on the container.
Viscosity
Sae 15w-50
The other viscosity grades ...