2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 111Get this manual

CHANGING THE COOLANT

10.Check: Copper washer Coolant drain bolt Damage Replace11.Install: Coolant drain bolt (water pump)

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives