You're looking for someone to finance you for $2,500 on a $4,500 bike? How long did it take you save up that $2,000? How long do you expect it to take you to pay off the remaining balance? Who in their right mind would agree to this knowing
A) You have no money
B) You probably don't make much money (nothing wrong with that, you're a college student)
C) I'm assuming you have no collateral
D) You won't be able to afford full coverage, so if you crash the bike, insurance will not cover it
E) I'm assuming you're a new rider, which means there's a good chance D will happen
Be smart, use that $2,000 and buy a beater car. Your overall cost will be much lower, and you're not putting yourself at risk.