2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 220Get this manual
WATER PUMP EBS00134
WATER PUMP
JobPart Removing the water pump Engine oil Coolant Exhaust pipe Rear brake light switchfootrest (right) Clutch cover Radiator outlet hose Water pump inlet pipe Water pump housing Oil filter element cover Oil filter element Parking brake holder Oil delivery pipe 1