Ok I changed the rear tire and balanced it on my 2012 Burman 650 (4512 miles) because of a nail. I am a scooter mechanic, so I am not totally unfamiliar with the rear wheel of a scooter. Followed the video on Youtube showing a Burgman 650 and replaced the rear tire. Now my first and maybe second pump on the rear brake is a catch. It takes a second or third pull to make the brake catch. Someone with a little Burgman know how please help as to what might be the problem. Everything seemed to go back on OK.