The only thing i can think of is the initial run of cams had a defect that in some cases has led to breakage of the decompression mechanism on the ends of the exhaust cam. A few people have had them break, tho no one has had a breakdown as a result. But theres no way to know if that bike has the upgrades cam. The 11's surely do, but i don't think you can know with a 10. it could have the upgraded cams or not. If it's a later one it probably does.