tryn2hrd

I have a rancher 420 TM that since i bought it has a cold hard shift problem beyond a doubt clutch is not releasing by shift lever. After it gets good and hot it shifts ok. Tried preloading adjustment screw clutch releases and shifts smooth but slips. Have had the clutch out and apart twice for inspection and didnt see anything wrong. Any tips will be appreciated. I've ran out of things to try instead of throwing new parts at it.

Need help finding a wiring diagram for this bike Kazuma Falcon 90 . I cant seem to find it anywhere.