Ducati MONSTER S4 Owner's Manual page 45

Note
Never touch the transparent body of the new bulb
with your fingers or it will blacken resulting in reduced
bulb brilliancy.
Insert the locating pegs of the bulb base into their seats
to obtain correct alignment; hook the clip (3) to the
headlamp holders.
Reconnect the cables.
To change the parking light bulb, withdraw the bulb
holder (4, fig. 35.2). The bulb is of the bayonet-type:
press and rotate anti-clockwise to remove. Fit the spare
bulb by pressing and turning clockwise until it clicks Fit
the bulb holder again and assemble the rim-reflector
assembly.
Instrument panel (fig. 36)
Disassemble the instrument panel by unscrewing the
two fastening screws with washer.
Disconnect the odometer cable (1) and the main wiring
connector (2). Undo the four cap nuts (3) fastening the
rear cover.
Remove the instrument panel and the rear cover.
Replace the burnt bulb with one with equal rating.
Note
Test the new bulb before refitting the instrument
panel elements.
fig. 35.2
3
2
E
1
fig. 36
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