u/Sabre-Tooth-Duck

Hi All,

Can anyone identify the noise coming from this engine? It’s a rhythmic knocking/tapping sound, it doesn’t come up particularly well on video but in person it is very apparent. It is awful on a cold start and gets less obvious as the engine warms.

I think it’s coming from the top end but can’t be sure, the bike is a 2011 Gen6 approaching 30k miles.

Any advice would be appreciated
Thanks!