2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 229Get this manual
FRONT AND REAR BRAKES EBS00415
ASSEMBLING THE FRONT BRAKE MASTER CYLINDER
WARNING
All internal brake components should be cleaned and lubricated with new brake fluid only before installationRecommended brake fluid DOT Whenever master cylinder is disassembled, replace the piston seals and dust seals