Sorry to ask a dirtbike question in an ATV forum but I know you guys know alot about all kinds of off road vehicles. My daughter's 2001 Yamaha RT100 was smoking so I had a "friend" look at it. He pulled the head and said it needed a new piston and rings. She's outgrown the bike so I didn't want to put money in it and he got offended (I offered to pay him for his time). He had already taken out the piston and rings and tossed them so now I've gotten it back minus the piston and rings. I would just like to sell it as is - project or parts bike but don't know what it's worth in that shape. Plastics and seat and tires are all in pretty good shape.Got any ideas?