Bought my 2007 M109R in Nov 2015 w/ 14,000 kms and it didn't take long for me to discover it came with severe clutch shudder and I now have 26,000 kms and the shudder just became more and more annoying. I read all the forums on clutch shudder and the common fixes, however most riders said their fixes only lasted so long and the shudder returned. At some point Suzuki did an upgrade on the conical wave washer and that was the only upgrade I could find regarding the clutch. I checked the 2010 & 2011 for upgrades by cross referencing the part numbers and found that the 2011 had about 18 upgrades on the clutch. Surprisingly the push pin and clutch basket had never been upgraded. Some of the upgrades were adding more plates and discs by thinning all the discs and plates. They upgraded the hub, springs and push pin washer. I figured because the clutch basket had never been upgraded all the 2011 upgrades would be compatible for the 2007 clutch and fit into the clutch basket. Friday the complete 18 upgrades for the 2011 clutch were successfully installed on my 2007 and it was a perfect fit. Saturday I took the bike out for about 5 hrs and so far had no clutch shutter - the shifting was so much smoother - the clutch lever was much lighter- the engine loud clanking noise I used to get when it was idling has also disappeared -it felt real good just like I had a new bike. If in time the clutch shudder returns or other problems occur I will post it on this thread.
I should add that the original parts I had replaced showed some wear but nothing serious enough to need replacing. The conical wave washer was in good shape and had not been flattened. So maybe the original clutch was just poorly engineered.