Ducati Diavel Service Manual: Rectifier-regulator
The rectifier (1) is placed in the electrical components compartment.
The rectifier/regulator consists of an aluminium casing containing the diodes that rectify the current produced by the alternator. It also contains an electronic device that regulates the current supplied by the alternator in accordance with battery voltage.
If the battery is drained, the current has the value necessary to restore optimum operating conditions of the battery. In contrast, if the battery is fully charged, the current value will be lower.
Note
Control the charger current by using the dds diagnosis instrument (sect. 6 - 11, Diagnostic instruments).
Removal of the regulator 
Undo the two fixing screws (1) of the voltage regulator (2) and remove it together with them.
Important
Do not disconnect the battery cables when engine is running because this would cause irreparable damage to the regulator.
Refitting the regulator
Position the regulator (1) on the support.
Tighten the screws (1) to a torque of 10 nm +/- 10% (sect. 3 - 3, Frame torque settings).
Important
Do not disconnect the battery cables when engine is running because this would cause irreparable damage to the regulator.
Regulator fuse
The 30 a fuse is located inside the solenoid starter in the electrical components compartment.
Remove the fuse cap (a) to reach it.
A blown fuse can be identified by breakage of the inner filament (b).
Important
To avoid possible short circuits, replace the fuse in key off condition.
Warning
Never use a fuse with a rating other than the specified value. Failure to observe this rule may damage the electric system or even cause fire.
Alternator
It is equipped with a 12 v, 430 w generator, consisting of a fixed element
(stator, a) located on the generator cover and
of a movable element (rotor, b) fixed to the crankshaft.
Note
To chec ...
Electric starting system
Note
The references of the elements listed below are those of the "wiring
diagram", sect. 6 -1.
Electric starting system
The key components of the electric starting system are a solenoid (6) and ...
Other materials:
Electrical power for lighting and signalling devices
The front and rear running lights consist of led units with light conduits.
As a result, the light source is not visible as the
light is diffused through the surface of the light conduit.
These two images illustrate the front and rear running lights with light
conduits.
The figure ...
Adjusting the front fork
The front fork used on this motorcycle has rebound,
compression and spring preload adjustment.
The settings are adjusted using external adjuster screws.
To adjust rebound damping (fig. 109);
To adjust spring preload (fig. 109);
To adjust compression damping (fig. 110).
Park the mo ...
Refitting the number plate holder
Place the number plate light (5), as indicated, on the number plate holder
plate (8) and tighten the screws (7) to a torque
of 2 nm +/- 10% (sect. 3 - 3, Frame torque settings).
Thread the number plate light wiring (c) into the opening in the number plate
holder plate as shown.
Fit ...