cb550 k3 clutch plate spacing

[bigmockuk]

Hi all, ive got a question about the spacing of the cluth plates,i`ve always seen that plain/friction plates alternate each other and yet i see 2 plain plates held together with rivots in the middle of the sequence? ive looked at umpteen pics of same engine and dont see this space,can anyone throw some light on this thanks,i`ll upload a pic that shows this space created by these 2 plain plates

[LesH]

Not that my answer may help you but I'm 2nd owner of a CB500/4 which I've had for 39 years and when I replaced my clutch plates for the first time some years ago I had one extra in the basket that shouldn't have been there !  Whether on factory assembly someone got carried away I'll never know but replaced with new set as supplied and still working after 30 years or so.
Maybe have a look at the SCHEMATIC pictures relevant to your bike on www.cmsnl.com can sometimes be useful.

[bigmockuk]

your answer did indeed help! the setup i have is correct after all.This double rivoted plate is the 6th in line from the backplate and is reffered to plate B comp.cl,manufacturing no 22322 390 000.there are 6 plain and 7 friction.with that cleared up i`ll save that site for future reference,cheers for the help!

[Bryanj]

It was a mod to try and stop clutch rattle, used on Wings and F2 as well if I remember right