As an owner of a 1993 "3rd gen" VFR750, your 2001 VFR800 is basically the same as mine, with the last of the gear driven cams and shim under bucket. Believe me, this is one of the SIMPLEST shim under bucket designs to take the cams out of and replace the shims, if it's even needed. No cam chains to fart with, easy to set timing marks and reinstall the cams. I did it this winter and was pleased at how easy it was. You don't even have to remove the radiator like I did! No dealers ever touch my bikes.