i am new to the dirt bike world, but i love anything with a motor. so i picked up an yamaha tt 250 1979 and a yamaha yz125 to restore them. but i don't know any history on them i was told that the tt 250 was a collectors item, but i don't know if some one was pulling my chain.if any one knows any thing about either of the bikes or links to some web sites that might tell me more about them that would appreciated.( i already have service manuals for both). :bang: