SpringMan
My bike is coming up on 50,000 miles and had a clutch-slipping issue that I couldn't adjust out or fix with different rod lengths . So , I got new fiber plates and springs . the problem didn't go away with the new plates ... they were only slightly thicker than the old ones ???
...
After measuring the space inside the clutch basket with NO plates in it , then measuring the plates with No basket ... I found the problem.
The clutch basket has an Aluminum plate for the (bottom) next to the motor. The clutch has steel plates in-between the fiber plates.
The aluminum backing plate is the weak link that wears in the whole thing. Adding an extra steel plate to make a thicker group of plates solved the problem .
Now , the clutch has enough material inside the basket to pinch-a-grip on !
But
The basket is now .060" thicker (extra steel plate) ... minus the amount the aluminum back wore-off. So , you'll need a push rod about .040" shorter , but try if before ya go cutting the push rod.
I've had my clutch cover off 10 times or more, trying different stuff. That's how I came to use form-a-gasket so much ... I got tired of buying/making gaskets !