Sure it's not the valve rattling in the down pipe?
It doesn't sound like it's jumped a tooth, I doubt it would run anywhere near as well as that..
What sort of a noise is it making, it's hard to tell from the video, idk if it's my speakers.
Did you use a genuine tensioner or an aftermarket manual one?
Common that the valve in-between the front header down pipes rattle giving a false impression
Why did you replace the tensioner?
2 second rattle when I started bike
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