Ducati MONSTER S4R Manuel D'utilisation Et Entretien page 132

Turn indicators (fig. 56)
Undo the fixing screw (1) to detach the light cover (2) from
the indicator support.
The bulb is of the bayonet-type: press and twist counter-
clockwise to remove. Change the bulb and refit by pressing
and turning clockwise until it locates into its seat with
an audible click. Refit the light cover by inserting tab (A)
into the corresponding slot in the support.
Reinstall screw (1).
Stop light (fig. 57)
To change the brake and parking light bulb, undo the two
screws (1) securing the lens (2) and remove it. The bulb is
of the bayonet-type: press and twist counter-clockwise to
remove. Change the bulb and refit by pressing and turning
clockwise until it locates into its seat with an audible click.
Reinstall the lens.
A
2
2
1
fig. 56
1
fig. 57
55
E