Was doing a “hard” pull from 2nd gear 100 km/h to 200 km/h and this noise suddenly appeared. I know these bikes come with automatic cam chain tensioners so why it would make such a noise if it is supposed to adjust itself automatically? The noise increases with RPMs and sometimes disappears at idle.



I am thinking it may be either the valves, rods or bearings or possibly cam chain. Anyway, someone maybe has experience with this and could recognize it from the sound. I have added a video of the sound during startup.