i got one of them the other day and put it on after i rebuilt my e50 bottom end. i went and started it up and there was no low end at all. i kept thinking it was something to do with jetting so i went through i the range i had and nothing improved. i took the clutch out and took the screws out a little thinking that they might be too tight...nothing. i but back in my old three shoe and off i went. i was just wondering if anyone else got one and if they had problems with it engaging? it was reving super low and not taking forever to get up to speed.