So the shift shaft on my 1990 has badly worn splines, to where it might work if I tighten it down hard enough, but I don't want to have to split these cases again to change it if it doesn't...
Apparently, you can't get the OEM part (discontinued, not superseded by another part), but I read a post on here that mentioned that the 95+ shaft will fit, just that the splines are bigger and you need the matching lever for it. Can I upgrade to the newer part? I found a 2000 KX250 shaft and lever for cheap that the seller claims fits the KX500, and it looks like it does cross reference to the same year 500...