The thrust washers are of different outside diameters, 44 and 40 mm., and the same ID since they fit on the same shaft.  When reassembling the clutch, the 44mm goes on the drive shaft first (inboard), then the clutch outer housing, then there is a spacer, followed by the 40mm OD thrust washer and so on.  Apparently, as the oil travels towards the center of the clutch assembly, it follows a path around the OD of the outboard 40mm thrust washer. Ergo, if you mistakenly put the larger 44mm washer on last, instead of the 40mm, the extra 4mm of diameter will be blocking the oil path toward the inboard part of the clutch assembly.  

Hope that answers your question.

The moral of the story is to hold the two thrust washers together and put the bigger one on the shaft first, and the smaller one on last and you'll be good to go, assuming you installed everything else correctly.

Is this not shown in the Book? I havent gone out & looked in mine.

Should be oil in the disks.... it's a wet clutch.

Thanks to all who are responding.

I am using the clymers and made sure the assembly was correct.

I have never worked on a cycle clutch and am trying to understand how all the pieces interact.

The cycle history.
Purchased 2 months ago. Running bad with "many" "hotrod" things done to it. I got it running well enough reverting settings back to stock to realize the clutch slipped. I replaced the friction plates only and about 100 miles later the clutch started slipping badly.  So I ordered another friction set and springs this time. Upon inspection one of the steels was blue and a cork disk was devoid of cork.

I cleaned all the steels, checked them and put the clutch back together with the new plates and springs. Clutch is still slipping :'(.

I have double checked all the obvious items and am left thinking the steels are bad and prehaps the pressure plate as well.  I am wondering if the bevel washer is messed up(how?).

Today I took it all apart again. previous blue steel is blue again. Friction plates look good. I put the clutch together on the bench and can turn the first disk (the one next to the bevel washer). The rest of the disks are locked tight.

I have been using EBC plates and springs. My plan ahead now that I completed the BRC, is to order steels, pressure plate, and factory springs.

I have just been using the bike around town to learn the ropes. (ie not racing)

Any other coments or suggestions?

Good question. I am using delo diesel oil.

No kidding you are 100% correct.  This is going to be an expensive....DOH!

Like I said, I am new to cycling and love it. I am also a tinkerer and it appears I may have caused this myself.

Thanks.