03 with 90k km - recently noticed a distinct crackling sound when engine begins to warm up - mostly under acceleration and slightly under deceleration - disappears when clutch engaged & does not make an appearance unless under load starting around 3k - tried to replicate sound seated on bike on centre stand & slightly dragging rear brake - nothing - pulled Tupperware & checked for rattles, loose fasteners in the exhaust etc - suggestions? Could cam chain tensioner be going and only under load when cam shaft slightly deflects would the chain make the noise?
Attached audio link
https://www.youtube.com/watch?v=e-Nlt8a-48U&feature=youtu.be
Attached audio link
https://www.youtube.com/watch?v=e-Nlt8a-48U&feature=youtu.be
Last edited: