What are my chances of being approved for a motorcycle loan?

I make almost $300 a week after taxes and I have absolutely no bills cause I live with my parents who dont charge me for food or anything. My only expense is gas and I'm a 19 year old male. Should I try to get a loan through my local bank (who I've been with for 6 years) or the dealer? And what are my chances of getting approved for a $3500-$4000 loan?