RE: Welcome to Club SAITO !
I have always set my valve lash at between .001" and .002". I'm not good enough to say exactly WHERE it was between those two dimensions, because I only use a set of feeler gauges. Bill R said he used a dial indicator, and that is probably why he could set the clearance more precisely.
I don't know if it is best to set the clearance as low as I do or not. I started doing that on Bill's recommendation. That is why I asked the question.... Is it harmful to set valve lash lower than .002"?