Ducati DESMOSEDICI RR Owner's Manual page 73

Clutch system
If the control lever has exceeding play and the transmission
snatches or jams as you try to engage a gear, it means that
there might be air in the circuit. Contact your Dealer or an
Authorised Workshop to have the system inspected and air
drained out.
Warning
Clutch fluid level will increase as clutch plate friction
material wears down. Do not exceed specified level
(3 mm above minimum level).
E
fig. 62
73