Clutching problems with 04 800 summit

[walker]

I have a 04 summit 800 151, 9 tooth anti ratchets. all stock ext. light weight can. The problem is going at steady speed and letting off the throdle, it down shifts to fast. almost like you are putting on the brake. the engine revs high. also doesn't seem to be up shifting right. lots of go up to 40 or so then flattens out. cleaned both clutches replaced buttons, didn't see any problems. any ideas thanks

 

[walker]

ttt

 

[Rev it up]

clean secondary put a roller in if you dont have one. my 04 did the same thing when it was stock put roller in made a world of differance. also check both springs could have one thats geting weak.