13. BRAKE SYSTEM ATV 300/250 Snap Ring Remove the brake lever bolt and the brake lever. Remove the piston rubber cover and snap ring from the brake master cylinder. Snap Ring Pliers (Close) Remove the washer, main piston and spring Master Cylinder Spring Main Piston from the brake master cylinder. Clean the inside of the master cylinder and brake reservoir with brake fluid. Snap Ring Rubber Cover INSPECTION Check the cylinder inside wall, and spring for scratch, corrosion or other abnormal condition. If any abnormal condition is found, replace the inner parts or master cylinder. 13-6