2008-2010 Kawasaki KFX450R Factory Service Manual, Page 308Get this manual

2008-2010 Kawasaki KFX450R Factory Service Manual, Page 308

11-12 FINAL DRIVE Rear Axle
copper mallet Tap the rear axle right side end with the exposed[A] until the sprocket holder stopper ring is

Remove: Holder Stopper Ring [A] Sprocket