Ducati Monster 796 Workshop Manual page 608

Gearbox assembly: gearchange mechanism
Ensure that the shaft with lever (16) is positioned correctly relative to stop plate (23). The edges of the plate must be
equidistant from the pin of the lever; to adjust the position, loosen the lock nut (13) and turn eccentric pin (15).
Position the spring (10) between the shaft (16) and the fork (14).
Fit the ring (12) to secure the assembly.
Check that the spring (10) is installed correctly as shown in the figure.
Then tighten the nut (13) to a torque of 10 Nm (Min. 9 Nm - Max. 11 Nm) (Sect. 3 - 3, Engine torque settings).