2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 249Get this manual
WATER PUMP
DISASSEMBLING THE WATER PUMP 1.Remove: Rubber damper holder Rubber damper (from the impeller, with thin, flathead screwdriver) NOTE: Do not scratch the impeller shaft
2.Remove: Water pump seal NOTE: Tap out the water pump seal from the inside of the water pump housing2 Water pump housing