Ducati ST4s Owner's Manual page 151

Electric system
Basic electric items are:
Headlamp consisting of the following:
12V-55W low beam unit, poly-ellipsoidal with capacitor;
12V-55W high beam unit
12V-5W parking light.
Instrument panel, 12V-1.2W warning lights; 12V-2W
and 3W instrument lights.
Electrical controls on handlebar.
Turn indicators, 12V-10W bulbs.
Horn.
Stop light switches.
Battery 12V-10 Ah.
Generator 12V-520W.
Electronic voltage regulator (rectifier), protected by a
40 A fuse.
Starter motor, 12V-0.7 kW.
Tail light, 12V-5/21W double-filament bulb for stop light
and parking light; 12V-5W bulb for number plate light.
Note
See "Replacing bulbs" on page 53 for relevant
instructions.
Fuses
The main fuse box (fig. 50.1) is located on the frame left
side, behind the headlamp.
To access the fuse box, remove the left side guard of the
instrument panel (see page 42).
To expose the fuses, take off the box protective cover
(1). Mounting position and ampere capacity are marked
on box cover.
7 fuses are connected to the system. There is one spare
fuse.
1
E
fig. 50.1
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