World Superbike Racer
Join Date: Mar 2013
Location: Woodbury, MN
Thanked 565 Times in 446 Posts
Feedback Score: 1 reviews
Reach above the countershaft sprocket on the left side of the bike to where the shift shaft that runs across the top of the transmission (it'll be a splined shaft that has your shift linkage mounted to it) and see if you can move the shaft in and out. Not the piece bolted to it but the shaft itself, see if it has in and out movement.
Any movement more than say 1/16" or a millimeter or two means you found your culprit, the shift shaft keeper which is a literally $2 part behind the clutch basket that has broken from the impact. If the bike no longer shifts try pulling the shaft all the way out (away from the bike) and see if it starts shifting again. Thing is the part is fragile and inexpensive but to get to it you need to pull the clutch cover and the entire clutch basket to get to it; not hard but time consuming and you need a few special tools to do it.
Hope this helps, if it's not this then make sure your linkage moves free, lubed and is straight. And also check your shift lever for trueness because it's not that uncommon for it to get bent and bind.