I acquired a Harley Davidson edition 2 by Stern. It has the upgraded roms to edition 3. The whole machine is like brand new with zero wear on the playfield. The only issue I have noticed playing it a few times is the motorcycle lifting up and down not centered. It comes down on on the left side of the playfield. I know its going to wear on it if I don't get it adjusted. I looked at the rotating motor under the playfield. It appears it would have some kind of a washer, or plastic washer on it? Anyone have a machine they can look at to tell me? Measurements of it if it had one? Otherwise I will just have to start playing with some kind of washers to try out on it.