Ducati SPORT 1000 S Owner's Manual page 47

Clutch system
If there is too much play at the clutch lever and the
motorcycle jumps or stops when a gear is engaged, this
indicates air in the system. Contact a Ducati Dealer or
Authorized Service Centre to have the system inspected
and the air bled from the system.
Warning
E
The clutch fluid level in the reservoir tends to rise as
the friction material on the clutch plates wears out. Do not
exceed the specified level (3 mm above the minimum level).
46
fig. 36