2008-2010 Kawasaki KFX450R Factory Service Manual, Page 331Get this manual
BRAKES 12-19 Calipers
Push out the piston [A]
Remove: [A] Dust Seal
Fluid Seal [B] Anti-rattle Spring [C]
Remove: [A] Washer
Boots [B] Caliper Holder Shaft [C] Bleed Valve [D] and Rubber Cap [E]