Sounds valve area. The sound is a solid hit, like valve slapping close. I would double check valve adjustment. Then a compression test. Sounds one tap per engine revolution is why I think it's valve related. Could be stuck valve. Good luck and keep us informed.
You are hitting it right in the head !was it making the sound when you got the bike?
Do you have any info on the bike?
A rod bearing knock is normally a deeper sound, like tapping a hammer on a solid metal. Take a stethoscope and determine exactly where the noise it coming from. Another area to check would be timing chain tensioner area. I've heard simular sounds from timing chain master link with loose side plate hitting engine case.I agree... it is one tap per revolution.
I double checked valves ... it’s not there
When you are close to it it sounds exactly as if the sound coming from where the cylinder is attached to the bottom end...
It makes me think it’s part 12 or 16 in this picture
I sleep better at night doing my own wrenching on my bikes and cars.
A motorcycle is different from a car - a motorbike has to be 100% all the time, or you stand a good chance a serious accident.
If your engine bogs while you are pulling out into traffic, its not a dented door panel...
let us know how this works out for you, if you get a drop in engine replacement.
Dibs on the mirrors! :^).....I’ll have loads of parts for future projects
I thought that sight check for oil level on the 650 was so cool. The coolest thing on the bike. Was a little disappointed that the 950 didn't have it.It only takes a moment to reach down with a small mirror and check the oil level in a 650 (and most Vstar bikes) with the nice little sight-glass on the side of the engine case.