I believe there are stops, in by the steering head (underneath), to stop the bars from going too far. Perhaps this was damaged on the right. Up on the jack for a little investigation.
It is well known that the cop competitors in those tight windy cone competitions often cut the steering stops off their Hog competition bikes.
It might be #6 in the frame schematic.
https://www.partzilla.com/catalog/honda/motorcycle/1999/gl1500cf-ac-valkyrie-interstate/frameBut it is possible the frame itself was dented in, vs the stopper.