I know this is an older topic, but I just went through the whole registration hoop jumping routine today so I thought i'd share.
The motorcycle I registered had only the title (out of state), and the VIN on the Motor and Frame were not matching and had a new speedo so the odometer read 2 Miles. I was asked if I had any current registration papers or a plate for it, but told the woman I had only the title. She was more surprised about it having "only 2 miles on it!" and I explained it was a new gauge.
Since it was out of state I had to take it in for "verification" and the guy was really cool. I had no mirrors or signals on it and he didn't say anything. I did not have to go to CHP luckily.
After waiting in many lines and a couple hours later I had a plate and it was registered. Basically, any out of state vehicle needs to be inspected and as long as the title isn't suspect you'll be good.