2008-2010 Kawasaki KFX450R Factory Service Manual, Page 215Get this manual
6-14 ENGINE RIGHT SIDE Clutch
Install the washer so that stamp mark [A] facing the outside
Hold the clutch hub [A] with the clutch holder [B] Tighten
Special ToolClutch Holder: 57001-1243 TorqueClutch Hub Nut [C]: 98 Nm (10 kgfm, 72 ftlb)