When I first purchased(used), my 08 C14-I couldn't believe how awful that bike shifted. I'd never owned a bike that required such a deliberate, concentrated effort to get to the next gear.
Well...after experimenting with shift lever adjustments, assuring good fluid in clutch perch(yes, thoroughly bled-vacd), all that I could think of... I finally realized, it is what it is....
This bike does NOT like to be short shifted(which I tend to do- unless feeling frisky). The faster you shift this unit-the more willing/happier it is to snick next gear. Yep, check throttle cable adj, DO run expensive high end full syn oil. Just go with it.
And I agree...it's the worst shifting bike I've ever owned. But it sure is a handsome ST scoot and it's fast!
But Kawa should've done better. Newer bikes any slicker shifting?