2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 200Get this manual
CRANKCASE EBS00320
CRANKCASE
JobPart Separating the crankcase Engine assembly Camshafts Cylinder head A.Cmagneto Clutch Balancer Oil pump Shift drum segment Starter motor Timing chain guide (intake side) Timing chain Neutral switch Hose guide