2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 294Get this manual
REAR SHOCK ABSORBER AND RELAY ARM EBS00490
INSTALLING THE RELAY ARM AND CONNECTING ARM 1Install: bearing (to connecting arm) Installed depth of bearing mm (0.16 in)
2Install: bearings to (to relay arm) Installed depth of bearing 6.5 mm (0.26 in) Installed depth of bearing 5.0 mm (0.20 in) Installed depth of bearing 6.0 mm (0.24 in)