1. Faulty Brake Light Switch: The brake light switch is responsible for sending a signal to the taillight to turn on when the brake lever is engaged. If the switch is faulty or damaged, it can cause the brake light to stay on even when the brakes are not applied. Check the switch for any signs of damage or wear, and replace it if necessary.
2. Brake Fluid Reservoir Level: Low brake fluid level can also cause the brake light to stay on. The brake fluid reservoir is located on the right side of the motorcycle, near the handlebars. Check the fluid level and make sure it is between the "Min" and "Max" marks. If the fluid level is low, add the recommended brake fluid until it reaches the proper level.
3. Wiring Issues: Electrical problems, such as loose or damaged wires, can also cause the brake light to stay on. Inspect the wiring around the brake light and brake light switch for any signs of damage or disconnection. Tighten any loose connections and replace any damaged wires.
4. Electrical Relay: Some motorcycles use a relay to control the brake light. If the relay is faulty, it can cause the brake light to stay on. Check the relay for any signs of damage or corrosion, and replace it if necessary.
If you have checked all of these potential causes and the brake light still stays on, it is recommended to take your motorcycle to a professional mechanic for further diagnosis and repair.
