The magical speed box i was talking is 44800-447-013 BOX ASSY.
I guess i could have described it something better. Its on the right side and use to work properly. It is not the speedometer I know that works for sure. I can spin the wheel forward and the cable doesn't move most of the time. I spin the wheel backwards and I can feel the cable spinning pretty good.
It seems to me that the little two tabs inside the bike aren't catching to move the cable. It worked for awhile when I aligned everything when I take the wheel on and off. It was sitting the shop and I asked if I put it on backwards the guy said no he even put new tires and everything and said it was fine.
Ill post a picture a week or so of the piece im talking about from my bike.