ok i got my 2005 kickstarter assembly in today & there is no way this can work, the shaft that goes through the case is to big & the kicker will not fit on the splines so now i'm still wondering what to do...so the kicker on the 04 and up bikes has a bigger hole where the splines are? and the 03 is a one year only kickstarter The upper guide snaps in place. Replace it and you should be OK. The '03 kick starter as originally issued was superseded, and can't be bought from Yamaha. The original part number is still listed by Yamaha (5TA-15601-00-00), but usually, when a counterman looks that up, his "book" changes up to 5XD-15601-00-00 automatically. Depends on where you look.