So I need some advice...

[The Student]

I have recently been in they market for a motorcycle, not any in particular, and came across a guy who is willing to trade me his 03 sportster 1200. I like the bike and I feel I can get a good deal, but I know nothing about Harley's and what to look for, like common problem areas ect. I have had sport bikes in the past and know the basics, tires, mileage, exhaust. If you have any experience with sportsters or Harley's in general, please share.