1999-2004 Honda TRX400EX FourTrax Service Manual, Page 217Get this manual
HYDRAULIC DISC BRAKE Apply grease to the lock cable endInstall the lock cable into the stay and connect it to the brake armTurn the brake shaft clockwise approximately 90" from fully seated position and install the brake arm onto the brake shaft by aligning the punch marks on the arm and shaft
Loosely install the lock nut and adjusting boltAdjust the lock cable free play (page 3-16)
ADJUS BOLT