My dad has a 1985 Honda cb(not sure if 700 or 750)s that has not been serviced in a while so I will do it for him but one thing I need some help on is the rear brake. I have never worked on a shaft drive and could use some instructions on how to get to the brake pads to replace them. Also the how do I replace the oil filter? (sorry might be easy stuff but I usually work on old 2 strokes, Yamaha r5)