Cam chain rattle

New to this site some great info on here, and have a few questions if anybody can help purchased a neglected VF1000F2 as a project bike needs lots of work so could not really give it a good run, seems a solid bike and should restore well, question is engine rattle i assumed this could be cam chain im in the process of adjusting valve clearance how can i identify any issues with chain or tensioner

Turn the engine to TDC 1-3 mark and with the cam covers off check for slack on the back run of the cam chains.
If you find a lot of free play the tensioner has jammed.
To free off pull the tensioner blade up while pushing the lock plate forward with a thin screwdriver.
Release the tensioner blade then the lock plate
Rotate the engine a few times and recheck.

Thanks, I don’t think the slack is excessive around 8mm on TDC is this ok

Where are you measuring the slack?

along the top after removing the guide20210102_173957

If that’s total deflection(4mm down 4mm up) I wouldn’t be worried


rattle is back, start the bike up sounds good low revs all good increase revs chain rattle, stop and restart all good until you increase revs rattle comes back, pull off the tops chain is on tension, how easy is it to remove tensioner to check parts any other suggestions.