A quick update on fuel consumption:
I was about to go to the mountain and didnt want to run out of juice so I went to get some and to my surprise 11.6L got me from 1 bar on my indicator to 6 bars. The whole tank is 19L. That means it uses about 2.5L/100km.......quite good news ;)

Can someone tell me whats the reserve indicator on YBR250? I thought reserve starts when there is only 1 bar but my manual says reserve is around 4.7, or something like this, so its clearly not 1 bar ;)