Hi Folks,
My 350 is the same, I just pull in the clutch lever and kick it a couple of times, it frees off pretty much first or second kick. It was worse, and at traffic lights it would kind of snatch when in gear and the clutch disengaged. I removed the plates and cleaned them with brake cleaner, much better. The bike had been standing for a long time before I got it, I reckon the oil impregnated in the friction material for so long left a residue which causes the plates to be sticky. On other bikes it's taken quite a few strips and cleans before it is 100%. As I said,when cold and before starting, just kick it over with the clutch lever in. Oh, and the ignition off!.
Alan.