All
I was doing the preventative maintenance on my 82 Nighthawk 650 today and adjusted the cam chain tension, per my service manual instructions.
Upon completion, i had a very light ticking/tapping, with the engine running.. whereas it as not there beforehand?

An observation with this method:
1) it was difficult to maintain a smooth rotational movement with the plugs installed, as i tried to tighten the nut to secure the tensioner.
What did to make the adjustment go smoother:
1) removed all spark plugs
2) got a helper to slowly rotate the crank whilst i secured the cam chain tensioner nut.
after this, the tickety, tick went away

I began to think that the noise was due to the cam chain being improperly adjusted, but not sure? also wanted to e sure that the method i used (2ND attempt) was OK?
Thanks all, i sincerely appreciate all the advice/help received here!