Here is copy and paste from MD (I think this was originally posted at Thumper Talk...)
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I am asking anyone owning a 03' 4spd 4-5-0 that has the mysterious clutch problems to please contact the following telephone # if you live in the USA.
I was advised by the gal at Yamaha to pass the word on logging the clutch problems. She let me know that it may help in a recall and lets the research dept. get "hoppin'" on it if there needs to be a solution.
So here it is..........
Yamaha Motor Corporation, USA
6555 Katella Avenue
Cypress, CA 90630 Customer Relations
(800) 962-7926 Sales, marketing and distribution of Motorcycles, ATVs,
Snowmobiles, Generators and Race Kart Engines.