Hello again. I have sorted the problem this morning. I went into diag mode to see the rpm speed and to my surprise it was reving around 950-1030. I twisted the rpm adjustment knob using just two fingers( it is hard to reach with a screwdriver and you do not need to dismantle any bike parts) and it now revs around 1550 when i start it and goes around 1400 when it warms up during my ride. All is good and I have had no engine stalls today. Rides much better now. So thank you very much for the tips. Greetings from Romania.