2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 290Get this manual

FRONT AND REAR BRAKES

FRONT AND REAR BRAKE CALIPER DISASSEMBLY 1.Remove: Brake caliper piston Dust seal Caliper piston seal 2

Removal steps: Blow compressed air into the hose joint opening to force out the caliper piston from the brake caliper body
WARNING

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