Bold reference numbers in this section identify parts not shown in the figures alongside the text, but which can be found in the exploded view diagram.

The brake master cylinder manufacturer advises against servicing the brake master cylinder due to the safety critical nature of this component. Incorrect overhaul of these critical safety components can endanger rider and passenger safety.

Maintenance operations on these units are limited to renewal of the following parts: control lever, fluid reservoir assembly and relative fasteners and master cylinder fasteners.

For the ABS front braking system, also refer to Sect. 7 - 5, ABS system operating information, Sect. 7 - 6, System components, Sect. 7 - 7, ABS components maintenance.

Loosen the screws (15) securing the terminal (12) and then remove the front brake master cylinder assembly (1) from the han­dlebar.

Insert the front brake pump unit (1) on the right side of the handlebar to bring the terminal internal edge in correspondence to the bolted joints (A).

Tighten the fixing screws (15) to a torque of 10 Nm ± 10% (Sect. 3 - 3, Frame torque settings) following the sequence 1-2-1 start­ing from the upper screw.

Orientate the pipe (24) as illustrated in the figure and then tighten the special screw (3) to a torque of 23 Nm± 10% (Sect. 3 - 3, Frame torque settings).

In order to fit the pipe (24) and the retaining clips, follow instructions in Sect. 7 - 6, Flexible wiring/hoses positioning.

Brake fluid is corrosive and will damage paintwork. Avoid contact with eyes and skin. In case of accidental contact, wash the affected area with abundant running water and consult a doctor if necessary.

For all the maintenance operations (wear check and replacement of brake pads and brake fluids, etc.) see Sect. 4 - 3, Maintenance operations.

For the ABS front braking system, also refer to Sect. 7 - 5, ABS system operating information, Sect. 7 - 6, System components, Sect. 7 - 7, ABS components maintenance.

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).

Critical safety components. The brake calliper manufacturer recommends that you do not attempt to service the internal compo­nents of the brake callipers. Incorrect overhaul of this component could endanger rider safety.

To check the wear of the brake disks follow the data detailed in Sect. 3 - 1.1, Hydraulic brakes.

Before refitting the brake disc to the wheel, clean all contact surfaces thoroughly and smear a medium strength threadlocker on the threads of retaining screws (5).

Tighten the screws (5) to the torque of 25 Nm ± 5% (Sect. 3 - 3, Frame torque settings).

Refit the wheel on the motorcycle (Sect. 7 - 1, Refitting the front wheel).

While refitting the system, pay special attention to the orientation of the pipe couplings (24) on the pump and the pipes (13) and (20) on the callipers (9) and (18).

When reconnecting the brake hose to the calliper or master cylinder, make sure to install the sealing washers (4) either side of the hose end fitting.

After having oriented the pipe fitting (24) tighten the screw (3) to a torque of 23 Nm ± 10% (Sect. 3 - 3, Frame torque settings).

After having oriented the pipes (13) and (20) in the front brake callipers (18) and (9) tighten the special screws (19) and (25) to a torque of 23 Nm ± 10% (Sect. 3 - 3, Frame torque settings).

Hold the lever pulled towards the twistgrip and tighten the calliper screws (21) to the torque of 45 Nm ± 5% (Sect. 3 - 3, Frame torque settings).

Refit the front brake pipe protection (D) inserting and tightening to a torque of 3.5 Nm ± 10% (Sect. 3 - 3, Frame torque settings) the screws (E).

Tighten the screw (16) to the torque of 10 Nm ± 5% (Sect. 3 - 3, Frame torque settings).

In order to position the pipes (13), (20), (24) and the retaining clips, follow the instructions in Sect. 7 - 6, Flexible wiring/hoses positioning.