Do yourself or a friend a favor and get trained to ride that bike, or take a refresher to improve your skills as an experienced rider!
When you pass, you can get a waiver from the DMV so you don't have to take their test, too to get your motorcycle endorsement on your driver's license. And you'll learn a lot on how to stay safe on the road, that the DMV test will not teach you.
So go to www.scridered.org to learn more and find a class near you!
Editor's note - I've taken two of their courses, the Intermediate (where I got the waiver for my license) and Experienced rider course, and both were excellent. When I hear someone say they are getting or thinking of getting a bike, literally the first words out of my mouth is to get training ;-) I recently got another bike and plan to take a refresher course too.