Important
The brake manufacturer advises against any servicing of the internal components of brake callipers or the master cylinder.
Incorrect overhaul of these critical safety components can endanger rider and passenger safety.
Before removing the parts in question, you must first carry out the following operations:

note
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.
Unscrew and remove the special screw (22) fixing the pipes (33) to the rear brake calliper and the corresponding couplings (23).
Remove tube (33).
Undo the two fixing screws (12) of the rear brake calliper (15) to the calliper holder bracket and remove the brake calliper (15).
If it is necessary to remove the calliper holder bracket (a) refer to sec. 7 - 13, Removal of the rear wheel eccentric hub and rear wheel shaft.
Note
To replace the brake pads follow instructions in the paragraph "checking brake pad wear and changing brake pads" (sec. 4 - 3).
To remove the speed sensor (1), undo the retaining screw (2), having care not to damage the airgap spacer (8) and the washer (32).

Only the following parts should be renewed:
Refer to the exploded view at the beginning of this section for indications on renewal of the above components.
Refitting the rear brake control
Removal of the rear brake discMoving off
Disengage the clutch by squeezing the clutch lever.
Push down the gear change lever firmly with the tip of
your foot to engage first gear.
Raise the engine revs by turning the throttle twistgrip
while gradually releasing the clutch lever. The motorcycle
will start moving.
Release the ...
Removal of the rear wheel eccentric hub and rear wheel shaft
Before removing the eccentric hub, you must first remove the parts listed
below.
Slacken off the screws (34).
Remove the spacer (20) and the inner ring (21) on the chain side and remove the
wheel shaft (31) with the brake disc
(30) from the opposite side.
Remove the circlip (19 ...
Refitting the water pump
Clean the seat on the cover, any parts you intend to reuse, and the impeller
shaft. Then refit as follows.
Fit on the impeller (10) shaft the mechanical seal (9) as indicated in the
figure.
Apply specified lubricant to facilitate the insertion.
Bring the mechanical seal fully home on th ...