You'll be better off getting a loan from your personal bank. If you do finance through the dealer, pay more than your minimal payment. You will only have to pay $79 or $49 or whatever they advertise but its not actually a loan. Once they approve you the loan is actually a credit card you can use at that dealership and thats how the payments are so cheap. A friend of mine recently financed his 06' Banshee through Yamaha and pays $75 per month. His total came out at around $7800 and they put it on a Yamaha credit card with a $10,000 limit. So in the long run, you'll pay for that bike for a LONG TIME. Just make double payments if you get dealer financed. Hope that helps.
Brandon