I got a good deal on a set of Corbin seats for my 03 Hayabusa. Front fits fine. I'm having trouble installing the rear seat. Seems like the front top lip of the silver plastic trim (around the removeable short plastic tie piece with 2 plastic rivets) on the bike under the seat is too tall and won't let the seat tilt down to where it should ride. I think my seat was for an early Hayabusa but I didn't think there was any difference in Gen I seats? Thanks in advance...