2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 261Get this manual
HYDRAULIC DISC BRAKE
BRAKE FLUID REPLACEMENTAIR BLEEDING
BRAKE FLUID DRAINING
FRONT BRAKE
Turn th handlebar to the leh until the reservoir is level before removing the re servoir capRemove the screws, reservoir cap, set plate and diaph ragmSCREWS