2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 202Get this manual

MIDDLE GEAR

5.Remove: Front drive shaft coupling Bearing retainer Bearing NOTE: Attach the ring nut wrench 3Ring nut wrench: PNYM-38404, 90890-01430

CAUTION:

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