Hi Stan, did you pre soak the clutch fiber plates for a least 24 hours in oil before you installed them. I know rebuilding automatic tranny's that we had to soak the plates for 24 hrs in tranny fluid to make sure they were fully saturated with oil.
After a few hundred K. on my new clutch I did an adjustment on the push-rod stud and lock-nut. Then a minor adjustment on the cable, itself. Didn't have any issues - just some maintenance to account for the new friction-plates settling in.
1980 KZ 1300 sr# KZT30A-009997
Always High - Know Fear !
Different bike but my 900F is susceptible to clutch slip if I don't have the 'throw out lever' (if that's what it's called) adjustment on the clutch cover set properly (it's a similar configuration to the 1300 clutch except it's internal to the clutch cover - accessed through a screw-in plug)