13. BRAKE SYSTEM ATV 300/250 O-ring Fit the O-ring. Install and tighten the caliper housing bolts. Torque: 2.3 kgf-m (23 N-m, 16.5 lbf-ft) Washers INSTALLATION Install the rear caliper and tighten the two mounting bolts. Troque: Brake caliper mounting bolt (replace a new one): 3.2 kgf-m (32 Nm, 25 lbf-ft) With the tube ends contacted to the caliper and install the washers and tighten the fluid tube bolts. Torque: 3.5 kgf-m (35 Nm, 25 lbf-ft) Washers Fill the system with brake fluid and bleed air. (page 13-12) 13-18