13. BRAKE SYSTEM MXU 300/250 ASSEMBLY Before assembly, apply brake fluid to all removed parts. · During assembly, the main piston and spring must be installed as a unit without exchange. · When assembling the piston, soak the cups in brake fluid for a while. · Install the cups with the cup lips facing the correct direction. Install the main piston, spring and snap ring. Install the rubber cover. Install the brake lever. Place the brake master cylinder on the Punch Mark handlebar and install the holder with the "UP" Mark "UP" mark facing up. Also align the punch mark with the holder joint seam. First tighten the upper bolt and then tighten the lower bolt. Torque: 1.2 kgf-m (12 Nm, 8.6 lbf-ft) Holder Joint Seam Install the brake fluid tube with the Washers attaching bolt and two sealing washers, then tighten the bolt. Torque: 3.5 kgf-m (35 Nm, 25 lbf-ft) Connect the front stop switch wire connector. Fill the brake reservoir with the specified brake fluid and bleed air from the brake system. (page 13-4) Install the brake reservoir cover. 13-8