PERIODIC MAINTENANCE 2-25 BRAKE PEDAL HEIGHT • Loosen the lock-nut 1. • Turn the push rod 2 until the brake pedal height becomes 55 – 65 mm (2.2 – 2.6 in) A below the top of the footrest. • Tighten the lock-nut 1 securely. Rear brake master cylinder rod lock-nut: 18 N·m (1.8 kgf-m, 13.0 Ib-ft) Brake pedal height A: Standard: 55 – 65 mm (2.2 – 2.6 in) BRAKE LIGHT SWITCH • Adjust the rear brake light switch so that the brake light will come on just before pressure is felt when the brake pedal is depressed. AIR BLEEDING FROM BRAKE FLUID CIRCUIT E Air trapped in the brake fluid circuit acts like a cushion to absorb L a large proportion of the pressure developed by the master cyl- P inder and thus interferes with the full braking performance of the brake caliper. The presence of air is indicated by “sponginess” M of the brake lever and also by lack of braking force. Considering the danger to which such trapped air exposes the machine and A rider, it is essential that after remounting the brake and restoring the brake system to the normal condition, the brake fluid circuit S be purged of air in the following manner: