here's the best article available with pics on the fix.
https://www.twinmotorcycles.nl/artik...?cid=7&aid=292
each bearing is.... 6203 2RSL -----17mm Bore x 40mm OD x 12mm W ----- QTY. 2
see pic. remove 1-2mm of aluminum material where i drew the yellow marks. you can then slightly rotate the pulley downward relieving some of the belt tension which was set way too high from the factory.
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