I just installed a new motion pro clutch cable along with a brand new clutch (no spring change, the parts list ones dont match the installed ones?) We filed and smoothed out the basket tangs along with the job. Ajusted the free play screw/nut per OEM book and the clutch is dialed in like butter!!! In gear kick starts are still no-go from stops but rolling kick starts work fine and she even clicks into neutral from gear while running! What a difference and for rocks and technical stuff, its a night and day difference for clutch slipping control, no more grabby out of control, jerky clutch action. Keep your older single cam (610/570s) clutch well tuned and keep on smiling!!! A little dialing in goes a long way. (side note tech, I use Maxima red label Xtra4 synthetic exclusively)
Yep I can vouch for that. I use a featheflite clutch cable and use a 5wt fork oil for lubing all cables... you wont find any thing slipperyer