I've been reading this and other clutch topics for a month or 2, preparing to replace my fried clutch plates. Bike has just over 30000km on it and as far as I know, the clutch was the original. My mechanic recently said the plates were glazed and did a temporary fix (?added extra plate/s - I didn't know to ask him at the time).
On the topic of quieter clutch mods... https://www.ducati.ms/forums/showthread.php?t=70205
...I found it curious that my worn out clutch seemed to sound the same as this mod describes ie. "gloriously quiet clutch when in neutral with the clutch out. However, the beloved sound with the clutch pulled in". On pulling it apart I found that there was an extra friction plate under the first two steel plates, as the mod describes. This may have been added by my mechanic - I'll ask him next time. It was an extra thick friction plate with friction material (though totally worn) on one side only - see attached pic (thick plate on the left, alongside new Barnett friction plate for comparison)
I went with a Barnett pack as a replacement but kept the thick used friction plate back on the bottom to retain the quiet clutch mod benefits, followed by 2 thick steel plates, then alternating frictions & steels. Stack height ended up about 38mm (see attached pic). To get this I left one friction plate and the curved/dished plate out. On subsequent reading I see the curved plate is meant to give a more progressive clutch action, so I am thinking of at adding it in and adjusting a bit more. SO... being the first time I've done this, I have a couple of questions...
1) the curved plate from the Barnett pack looks more warped and twisted to me than just purely 'curved' or convex (see attached pic) - is this normal? I thought plates needed replacing if they were warped, but this one is straight out of the packet.
2) Do you always need to alternate friction and drive plates? If so, how is it ok for the first two steel drive plates to be together? Can you have 2 steel drive plates together elsewhere in the stack to adjust the height?
The clutch is working fine as it is but I wondered about the "more progressive feel" thing with the curved plate so just want to check what is ok to do on that front. I love the quiet clutch mod for all the reasons listed by others, so will be sticking with that part
Thanks in advance for any input