Hi! I'm currenlty riding a 1988 Suzuki GSXR1100 FJ Katana. I've got the forks off and I'm ready to take them apart but I'm confused by the locking mechanism. It's a flat disk with a groove in the middle and what appears to be a very thin notch on one side. There's no fork bolt. The disk appears to be holding down the spring and all the other stuff. Does anyone know how to get this disk out? Thanks Jamie