1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 191Get this manual
Inspection 1Inspect: Master cylinder body Scratches WearReplaceNOTE: Clean all passages with new brake fluidBrake hoses Cracks Wear Damage- ReplaceMaster cylinder kit Scratches Wear Replace Installation 1Assemble: Master cylinder Reverse disassembly steps
Internal parts should be lubricated with brake fluid when installed