Just blew my first belt at 1400km on kvf650 2002 ,this last saturday. Was running wide open trotle on open road.
the belt just explod. After inspecting the sheave there is some worn already on them? Any way i am not impress. Very good performance but very low durability.

 

No way it should have done that even if it was loose, had to be a defective belt, tell the dealer to call Kaw they should replace free.....Kaw customer service is 949-460-5688 ext..2467 this guy has been really helpful to me in the past.......

 

Never heard/read of a TOTAL FAILURE like yours. Please keep us posted on how you make out with Kaw. Cust. service. That is a shame.