My clutch has been too stiff since my engine rebuild. I put new friction pads in, new push rod, new cam thrust ball bearings and lubricated the new cable. Tried all sorts of adjustments and the cable is not cable tied anywhere. I pulled the clutch out today, the plain clutch plates slightly warped-worn. But the outer basket has ridges in each section. I assume that the plates are catching on these ridges causing the problem. A wise mate of mine said to file them all straight again ? I am of the mind to get a new basket or a complete modern clutch assembly, views please. Thanks.