i have o7 rev 800r i am burning the belt at 6000 rpm 30 miles hr... my bro did the clutching for a 860 bb on it well the piston skirt broke and toasted the whole thing... now i am trying to get it back to stock he doesn't remember what he change can anyone help me get it back to stock or knows someone that i can talk too.. Martin farm equ. in edmonton and they are a$$es won't tell me a thing even though i had it fixed there, told them to put it back to stock settings well they didn't do that... good thing they didn't charge me for work they didn't do or i would bring it back to them. I have heard to run a different belt not sure about that either. thanks for eveyones time.... i am running purple\green with 415 and about 17.5 grams of weight