2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 375Get this manual
FRONT AND REAR BRAKES WARNING
All internal brake components should be cleaned in new brake fluid onlyDo not use solvents as they will cause seals to swell and distort
1Check: brake caliper piston Scratchesrustwear Replace the brake caliper assembly brake caliper cylinder Wearscratches Replace the brake caliper assembly brake caliper body Cracksdamage Replace brake fluid delivery passage (brake caliper body) Blockage Blow out with compressed airWARNING