Financing with co signer?

i want a motorcycle but have bad credit, my girlfriend said she will co sign for and she has great credit 720 score i believe, the problem is that she only works part time cause she went back to school so her income is low 750 bucks a month, so would she still be able to co sign for me? and would i be able to get a decent intrest rate?

I wouldn't if I were her. You didn't mention your income or the price of the motorcycle. Probably neither one of you can afford it.