Can I register my dirt bike with the bill of sales from the original owner only?

I recently bought a dirt motorcycle (KDX220, Kawasaki)but the previous owner gave me the bill of sales from the original owner. The original owner live in another state and I don't have any way to contact him. this kind of bikes don't need to be register in others states, I think. I know is an obligation to register a dirt bike in Florida since a few years ago. Anyway my question is: Is there any way that I can register my bike with only the bill of sale I have?