13. REAR WHEEL/SWING ARM/ HYDRAULIC BRAKE Mongoose/KXR 90/50 DISASSEMBLY Remove the piston rubber cover and snap ring from the brake master cylinder. Snap Ring Pliers Master Cylinder Remove the washer, main piston and spring from the brake master cylinder. Clean the inside of the master cylinder and brake reservoir with brake fluid. Spring Main Piston Snap Ring I 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. 13-18