12-23-2020, 03:23 AM
I wouldn't take the risk, would you not at least measure/have them measured? I decided to check the valves on my other bike with 31K miles on it and the service book showed two previous dealer valve services. I believe the first but totally disbelieve the second. 6 were out of spec (not just at the extremes of spec) and one inlet valve was totally closed up. If I had left it a new head would of been the order of the day and it would of been very expensive.
