First of all thank you very much for your extensive response and offering your help! I have thought a lot about what I am going to do.
The Versys-X is my very first motorcycle. Before I've always driven a SYM scooter with a tiny 50cc 4 stroke engine. I drove A LOT with this scooter. Visited more than 10 different country's and managed to put more than 65,000 km on the ODO meter in less than 2 years. I knew this scooter inside and out and did every maintenance thing myself. The thing had never seen a dealer. I even did the valve adjustments myself.
The Versys is still fairly new to me. Iv'e done small things like a oil change, brake disk and pads replacement and chain replacements. Adjusting the valves is quite a drastic job. At this moment I'm not sure that I can handle the job. Especially removing the camshafts scares me because I have no experience with engine timing at all. A small mistake here can have a disastrous outcome. Ultimately I want to do all repairs myself. But at the moment adjusting the valves is still a step too high.
So what did I do.. I contacted the dealer and after a few back and forth messages we have agreed that I will visit the shop with Versys this Friday. For 150 euros they will adjust the valves, replace the spark plugs and perform a vacuum syncho. While they are doing this I can watch, ask questions and help with the repairs. This allows me to safely learn how to do it myself next time. Which I WILL do eventually! I think this is the best solution for now.
I wonder what these adjusments will do with the engine power output and fuel consumption rate. I'll give you some feedback here!
Thanks again! And stay safe during these crazy times..
Watch carefully, a solution you will not find in the service manual, using wire ties on the camshaft sprockets. That chain is held in the correct tooth of each sprocket.
Since you are doing this observation. If possible, take some photos.
here is a list of things to pay close attention to and mainly with the start once the valve cover is removed.
#1 observe the exposed position for 1 over T and 1/T , 2 over T and 2/T these are timing marks near the crankshaft, take a photo at first point of measurement, both the crankshaft position and the camshaft position. I am telling you this because all Service manuals from 2007 through 2015 have a mistake , the text is wrong the photos correct. One section shows it wrong, another shows the correct images. I and others have photos explaining this.
#2 pay attention to the removal of the cam chain tensioner if adjustments are required.
#3 if the measurements are just in spec
write down the measurements of each valve. personally , all of us have adjusted our valves to maximum clearance. The largest cost is the taking apart and putting together.
#4 if they adjusted, note the final position of the crankshaft while they are doing these adjustments, this is extremely important. That position should be with the camshaft sprocket timing marks exposed.
#5 last if adjustment was done, pay attention to the resetting of the cam chain tensioner and watch closely, if they know what they are doing, a slight 5 to 6 degree rotation of the crankshaft will move slack of the cam chain towards the tensioner, making it extremely easy to install.
Pay close attention and this is out of order , only if they are adjusting, how they go about removing the buckets and shims, also note where they stick rags.
Any photos you can take will help you and others, I have probably missed some things.
Nice to see someone proactive . Tools etc, many of us can steer you so you buy the right stuff the first time.