Ducati Monster 796 Workshop Manual page 467

Throttle body
Refitting the injectors
Lubricate the injector O-rings.
Refit on injectors: fuel feed hose (28), fuel return hose (19) and injector connection hose (30), then tighten them using
ties (8).
Locate the washers (24) and tighten the screws (25).
If the heat shrink sleeve (6) is to be renewed, slide it over hoses (28) and (29) and seat tight against the clamp (8), as
shown in the photo.
Set the hot air blower to 150 °C. While holding the pipes curved, apply heat to "shrink" the sleeve, holding the blower
approximately 15 mm from the sleeve. Pass the hot air blower along the sleeve several times (moving continuously from
one end to the other) avoiding heating the same point for a prolonged time.
Important
The sleeve should only be heated for the timer it takes to "shrink"; do not carry on heating it beyond this point.
Removal of the stepper motor
The stepper motor (31) is installed in the central part of the throttle body:
To remove it, unscrew the two screws (32) and disconnect the hoses (G) from the throttle body.
Refer to Section 6 - 12, Stepper motor for details on its operation.