Ducati HYPERMOTARD 939 Owner's Manual page 211

The main fuse (C) is located next to the rear fuse box,
on solenoid starter (D). Remove the fuse cap (E) to
reach it. A blown fuse can be identified by breakage
of the inner filament (F).
Important
Switch the ignition key to OFF before replacing
the fuse to avoid possible short-circuits.
Warning
Never use a fuse with a rating other than
specified. Failure to observe this rule may damage
the electric system or even cause fire.
210
E
C D
F
Fig. 147
F
Fig. 148