Needle plates get bent often on bikes that have been sitting for extended periods with varnished up slides. When the throttle grip
refuses to turn, some just think simply turning it with more force will be just the ticket to unstick things..
750s are more prone to
bent plates. IIRC, the 500/550 plates are much stronger and designed diffeently. And yeah, like you guys mentioned, syncing
is impossible with a bent needle plate.