Remove the seat and turn it upside down.
Loosen the special screws (4), turn the plates (5) and open the seat cover (2) lateral sides to slide it out.

Removal of the seat
Reassembly of the seatAdjusting throttle control free play
The throttle twistgrip must have free play of 1.5×2.0 Mm in
all steering positions, measured on the outer edge of the
twistgrip. If necessary, adjust it using the adjusters (1 and 2,
fig. 135) Located on the headstock on the right-hand side of
the vehicle.
Adjuster (1) is for throttle o ...
Removing the silencer
Loosen the clamp (38) that retains the silencer (4) to the complete exhaust
system.
While holding the nut (8), loosen the screw (1) and remove the silencer (4)
from the motorcycle.
Loosen the screws (40) and remove the silencer guard (41).
...
Coverage
Warranty defects shall be remedied during customary
business hours at any authorized ducati motorcycle dealer
located within the united states of america in compliance
with the clean air act and applicable regulations of the
united states environmental protection agency and the
california air r ...