Ya know....i did that...and wasn't sure how it was supposed to operate. I noticed it went fully to the stops on the shift drum where the shift forks roll on. I wasn't sure about it or not...but I noticed the shift forks were numbered and I followed it by the book. The shift forks only go in one way....I flipped them around and then they wouldn't ride on the drum, and they fit in between the gears one way where they were positioned also. Pretty simple as long as all gears are on the shafts!