At 30,000 km I checked my valve clearance, 6 exhaust valves and 2 intakes were right at the limit of specs. I'm now at 60,000 km and thought I should check the valves again, I do most of my own maintenance including valve clearance checks, but I think this time some might need to be re-shimmed and I am not comfortable pulling the camshafts so I went to the local Honda dealer where a friend of mine is the mechanic. He said just do a compression check, if the compression is good your valves will be good. Have any of you heard of this? I would think the only way a compression check would be valid is if they were so far out of spec that a valve was being held off the seat. I think I need to find another mechanic.