clutch slip

hmm, the ninja has bit of slip in it at the moment, not enough to bother me since im just commuting, but ill probably look at it sooner than later. Just one question, would the pressure plates really be boned after just 40 000km? or would it just be possible the springs. Being a learner bike i still wouldnt rule out the plates
edit: and oh, useful info... its usually grips fine if i just just the clutch lever go completely, but if i baby the clutch back out then it starts to slip.

edit: and oh, useful info... its usually grips fine if i just just the clutch lever go completely, but if i baby the clutch back out then it starts to slip.