I have purchased a Corbin seat for my 2003 Burgman 400. Can some one supplement the instruction manual on how to remove the old seat, step by step. I would also appreciate any other helpful comments for the installation process. Yesterday, I installed the Givi trunk. The instructions offered little help on how to remove the back plates and the fact that you had to remove a screw for the backrest to remove the front plate to complete the installation. What should have taken 45 minutes took about three hours.