Hey Freddy, long time no texting.

Since October I got pretty familiar with the service manual, had an HFT issue, and was able to fix it and now I feel ready to pull the trigger and attempt to change the CCT myself. And I want to do that as Honda has quoted me 2500$ for that fix, which is absolutely crazy.
I am pretty sure that mine too is with the rear tensioner (listening with a screwdriver to my ear, made things very clear), and as you said it doesn't say how exactly to remove the tensioner. I have spent many hours looking for a video on youtube and nothing. So I have a few questions.
Do I understand the cadence correctly? I have to remove the central cove, upper fuel tank, valve cover, and 2 bolts holding the tensioner, and after I'll be ready to take it out. Also before that, I'll have to find the TDC which seems to be easy.
1. Will I need to remove the cam chain sprocket or the valve train?
2. How do I know it is the compression stroke? It says in the manual that find TDC on comp. stroke.
3. Do I need a brand new valve cover gasket, or just applying some Honda bond to put it together with the old one is enough?
4. When removing the tensioner: do I have to push one of the wedges down and pull up the other and fix it with a 2mm pin to be able to pull it out?
5. Am I missing something crucial?
Sorry for so many questions and thanks for your help.
P.S. I have not ridden the bike anywhere far, this is my first bike and I am only one year in Vancouver, moved here from Prague, CZ. But once I fix this issue will give it a try.
Getting the plastic off is something of a challenge the first time. Follow the steps in the FSM (factory service manual) - though where it says 'remove' it doesn't say how to remove. The instructions were obviously written by someone who was very familiar with it.
Where in the world are you Mika?
Edit: I now see Vancouver. My wife & I were there 6 years ago. We did the Rocky Mountaineer circuit via Lake Louise - absolutely loved it!
You probly read that the rear one in mine was the problem but I pulled the front one out to check - and it was not worn, very surprisingly.