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 InspectionTire Removal
   
	Remove:
	Wheels (see Front/Rear Wheel Removal)
	Valve Core (Let out the air)
	To maintain wheel balance, mark the valve stem position
	on the tire with chalk so that the tire can be reinstalled in
	the same position.
	Chalk Mark or Yellow Mark [A]
	Valve Stem [B]
	Align [C]
	Lu ...
   
Interlock Operation Inspection
   
	Raise the rear wheel off the ground with the stand [A].
1st Check
	Start the engine to the following conditions
Condition:
Transmission Gear → 1st Position
Clutch Lever → Release
Sidestand → Down or Up
	Turn the ignition switch to ON and push the starter butto ...
   
Special Tools and Sealant
   Compression Gauge, 20 kgf/cm²:
57001-221 
Valve Spring Compressor Assembly:
57001-241 
Valve Spring Compressor Adapter,
25:
57001-1019 
Valve Seat Cutter, 45° - 27.5:
57001-1114 
Valve Seat Cutter, 45° - 32:
57001-1115 
Valve Seat Cutter, 32° - 28:
57001-1119 
Valve Seat Cutter  ...