I have a 2007 660 with a lot of hard miles on it, recently took clutches apart to clean service, put blue spring in secondary, and new aftermarket springs in wet, noticed a couple of the fins that keep the rollers were broken inside the primary outer sheave, installed new outer sheave complete with factory weights , after about 200 miles I opened it up and found that the fins were broken again !! WTF OVER ? I have ordered a Trinity racing sheave and roller kit, going to try that, but now im thinking something else might be causing this , ANY THOUGHTS ??
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