how to change brake fluid of a motorcycle
Fill the brake fluid reservoir with clean brake fluid. Be careful not to allow any of it to drip onto the painted surfaces of the motorcycle, as it can damage the finish. Place a 1/4 box-end wrench around the bleeder valve, which is located on the top side of the brake caliper. Attach a clear hose to the valve and put the other end into a jar. Have an assistant squeeze the front brake lever and hold it down.