I'm 19, and I wan't to finance a motorycle would this work?

I'n 2005 my mom financed a YZ125 at 5,000$ and I payed her the payments by doing odd jobs that payed well, 6 months ago I(myself)borrowed 800$ from the bank to buy a john boat and I payed it back pretty easily. Now I wan't to buy a Honda Shadow 750 motorcycle but my mom will not co-sign for me because shes worried I'll get hurt but I've been taking my dads motorcycle out and riding it all the time and I feel pretty safe where I ride at. So how can I use the title to my YZ125 to finance the motorcycle I want. I'm not good at saving up money but I can easily make the money for payments since I don't have to pay for anything else. How can I finance that motorycle without a co-signer?