2001 Yamaha YFM660 Raptor Factory Service Manual, Page 180Get this manual

SWINGARM AND DRIVE CHAIN 5.Lubricate: Drive chain

Recommended lubricant: Engine oil or chain lubricant suitable for O-ring chains

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