If the disc has worn past the service limit, replace it.
Measuring Area [B]

Brake Disc Thickness Standard:
Front 5.3
5.7 mm (0.21
0.22 in.)
Rear 4.8
5.2 mm (0.19
0.20 in.)
Service Limit:
Front 5.0 mm (0.20 in.)
Rear 4.5 mm (0.18 in.)
Brake Disc Installation
Brake Disc Warp InspectionExhaust Butterfly Valve Actuator Removal
NOTICE
Never drop the exhaust butterfly valve actuator especially
on a hard surface. Such a shock to the actuator
can damage it.
Remove:
Front Seat (see Front Seat Removal in the Frame chapter)
Clamp [A]
Screws [B] and Washers
Slide the covers [A] and loosen the lock nuts [B] ...
Hub Bearing Inspection
Since the hub bearings are made to extremely close tolerances,
the clearance can not normally be measured.
NOTE
Do not remove any bearings for inspection. If any bearings
are removed, they will need to be replaced with
new ones.
Turn each bearing in the hub back and forth [A] while
checki ...
Gear Position Switch Removal
Remove:
Oil Pump (see Oil pump Removal in the Engine Lubrication
System chapter)
Engine Sprocket (see Engine Sprocket Removal in the
Final Drive chapter)
Fuel Tank (see Fuel Tank Removal in the Fuel System
(DFI) chapter)
Disconnect the connector [A].
Remove:
Screws [A]
...