The bike ran great before he checked the clearances. I'm not sure about him but I personally turned crank anti-clockwise with 17mm socket until I saw the T mark and lined it up and felt free play in the rockers which is where it's meant to be? I then set it to the proper clearances.It was running before the valve adjustment, I assume? You sure you had the timing marks set to TDC on the compression stroke and not exhaust.
I am using mm as I am in the UK sorryThe exhaust valves should have .005 inches of clearance, and the intake valves should have .004 inches of clearance.