Ducati Monster 796 Workshop Manual page 643

Flywheel - alternator
Offer the cover (1) up to the generator cover and position the fuel tank breather hose (T) and the airbox drain hose (U),
the side stand cable (R), generator cable (S) and the starter motor cable (Q) as shown.
Important
The starter motor cable (Q) is the only cable that should be routed outside the cover (36).
Position the fuel tank drain hose (T), inserting it in the guide (9).