CB360T Engine Noise

I recently took my 360t in to have the cam chain tensioner changed to take care of any recall issues. Since then it's been making a strange tapping sound. I'm not quite sure what it is. I'm considering valves, rockers, springs, etc? Anyone hear this noise before and can offer any help?

https://www.youtube.com/watch?v=dp4mGfvtDQ0

sounds like a slak cam chaine easy to check

Not too bad but the pivot could be seized. I wouldn't g back there, they used cheap silicon sealer on cam cover