I just bought a 1985 Honda VT500C from a relative. He´s had it for a while and because of health reasons couldn´t ride that much. It has a bit less than 19000 miles on it. It seems like a beautiful bike but I have a couple of problems. There´s a hard compartment on the back that takes a key. He´s never opened it and the ignition key won´t fit. Also, there´s no owner manual. Can anyone help with either of these?