Call an insurance agent and tell them you want to insure the bike. Have the VIN, manufacturer, and model info handy. They don't care, really, if its been registered because, for instance, you might want coverage the moment you pay for the used bike and it obviously can't be registered at that point!
To register in most places you'll have to have a bill of sale and the title, both of which need to be signed by the former owner. Take them to you Dept of Motor Vehicles (or whatever its called in Utah).
Get an M endorsement on your license. Take the MSF. Blah blah blah (see stickie at top of this forum).
Dragging knee is for the track, and dragging tail is for the lot. --Kane Friesen
When you're in a car, you're watching a movie; when you're on a bike, you're in the movie. --Robert Pirsig
Identity theft is not Fun