take the rear master cylinder resevoir cap off at the handlebars and make sure the fluid it quite full.put a clear pipe over the rear caliper bleed nipple and the get a spanner 8mm or 10mm and put that on the nipple,pump the rear brake lever 4 times and hold it in and then undo the nipple for a second and do it back up pump the lever again 4 times hold in and undo the nipple again then do back up........... keep this routine up until the brake is bled make sure you keep the fluid in the resevoir up as if it runs out you will be back at square 1 again.and watch for flying brake fluid from the resevoir it will affect your paint if it comes in contact with it for too long.look for bubbles in the clear pipe to see how your doing you dont want any air in it
adam bike doctor
May 2010