Before removing the front forks, it is first necessary to remove the
following parts: 
Loosen the clamp screws (1) holding the fork legs to the steering head (3).
Loosen the clamp screws (2) and (26) securing the fork legs to the bottom yoke (4).
Withdraw the fork legs (5) and (6) downwards in order to carry out to all the necessary overhaul operations.

Steering head: front fork
Overhauling the front forksGear indicator display on dashboard shows dashes, engaged gear not displayed
correctly, idle speed irregular
with gearbox in neutral
Fault codes
Dds: gear sensor diagnosis -> short circuit to ground or open circuit (s.C.
Gnd or c.O.) - Short circuit to vdc (s.C. Vdc)
- congruence (generic error - signal not correct).
Dashboard: the error "gear sensor" is shown on the service display. The eobd
warning light activates.
...
Removal of the brake discs
The front brake discs consist of an inner carrier, which is mounted to the
wheel, and an outer rotor. Both parts must be
changed together as a pair.
Remove the front wheel (sect. 7 - 1, Removal of the front wheel).
Undo the retaining screws (5) of the disc to the wheel, remove the disc (7) ...
Replacing the front phonic wheel sensor
Disconnect the front abs sensor (2) connector (a) from the main electric
wiring.
Open all the retainer clamps of the front abs sensor cable (2): refer to table
of sect. 7 - 6, Flexible wiring/hoses
positioning.
Loosen retaining screw (1) and remove the front abs sensor (2) with
ca ...