What I picked up is a 1987 Yamaha YSR50. For anyone not familiar with theme they are 50cc mini sport bikes made from 1987 through 1992. I always had wanted one just to play with when they were new but just couldn't justify the cost. Here are a couple of pics and the specs on these awesome little bikes.
The one I bought is a total basket case and will have to be completely gone through but it should be a fun project for my son and I to work on together.
