2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 408Get this manual
HYDRAULIC BRAKE Tighten the bleed valveTORQUE: N-m (0.6 kgf m, 4.3 Ibfft) Perform air bleeding for the other side bleed valveAfter bleeding air, operate the brake pedalIf it still feels spongy, bleed the system againFill the rear brake reservoir to the "UPPER" level line with DOT brake fluid from sealed containerInstall the diaphragm, set plate and reservoir capInstall the rear brake reservoir onto the stay and tighten the mounting boltTORQUE: 12 N-m (1.2 kgf-m, Ibfft)