Ducati SPORTTOURING ST4S ABS Owner's Manual page 68

Unscrew the 8 fastening screws (3, fig. 62-63) that hold
the headlamp fairing to the side body panels.
Remove the fairing sliding it off the headlamp.
Important
When refitting, it is necessary to loosen the screws
of both rear-view mirror mounts and then fit the headlight
fairing. Make sure direction indicator cables are not
squeezed and fit rear-view mirrors with the relevant
E gasket, secure them with screws (1, fig. 60).
Set the headlight fairing so that its top edge is horizontal.
Tighten screws (3, fig. 62-63) starting from the front ones
then tighten mirror mount screws previously loosened.
68
3
3
3
fig. 62
3
3
fig. 63