We're trying to help you, really we are. The more information you give us the better we can do. There are things I still would like to know (scroll up). For one, why did you ask me about "repairing" the timing chain? You never answered. Things like that without any other other information are really frustrating and you're starting to pick up on that from other members, as well, who are also trying to help you.
You seemed have come to a Eureka moment when you discovered you had to move the decompressors around to get the valves to close for an accurate reading-
I told you that several posts earlier (see newly emphasized text). Please take a breath and absorb the collective knowledge.
If I were still giving advice, that I thought might be taken, I would suggest you rotate the valves around another rotation and see if that valve is still tight. If so, you need to change shims. I gave you a link detailing that process on the 2.5 Rockets along with the link to the manual in resources. You don't reply to such things. That's not a translation issue and, yes, you are welcome here and we are glad to have you join us, but it's a two way interaction....
I wonder about things like.... did you buy this bike in this condition, or are you the original owner and after 20K miles of riding woke up one morning with this issue? This kind of thing would be good to know.
These bikes are built like tanks. There are very few, if any, instances of major engine failure I've heard of other than people like
@Kevin frazier who are running heavily modified bikes and are pushing the $hite out of them to their outer limits. Is that you?