I think this might be a good clue Maurice. I've actually had a couple of stalls, but only after filling the tank and then letting the bike sit on a warm day. The fuel expands and I believe overwhelms the evap system and floods the engine when the evap purge cycle starts. If I fill up on the way to work and then the bike sits in the sun, when I'm leaving, it tries to stall on my way out of the parking lot. I have to keep the RPMs up a little bit to keep from stalling.
Focusing on not letting the gas go over the "full" plate on fill-ups and riding for a bit after a fill-up have stopped the issue from occurring for me.