I was riding my raptor around the farm was running perfectly fine then I hit the gas to take off and it just cut off Now all it does it backfire when I try to crank it. Pulled valve cover off and it's like valves are stuck down when it's at tdc any help would be appreciated
Sounds like you might have stuck a valve and then it bent. When at BDC is there a gap between the cam and the follower?
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