Excellent post. Thank you.
I will be adjusting the intake and exhaust valves on the 2000 Honda insight with 340,000 miles right away. I just notice the ticking sound when the engine is cold, has become a little louder than the usual light ticking sound. Although the engine is quiet once warm.
PS. Your write up of this procedure is extremely detailed and very well written(easy to understand), including excellent and very detailed and clear pictures. I'm very much looking forward to adjusting the valves