No, it's an FE250 so a 4 stroke.
I'm comparing it to my previous off road bikes, 300EXC (which was simply perfect) and a 530EXC which was too much in single track.
I should also point out that I'm not a small guy, so it's pushing some extra baggage.
I put a smaller countershaft sprocket on which helped, but it's not particularly robust in the lower and mid range. Pulls OK up top, but I find wringing it's neck is tiring.
It's still a nice single track bike because it handles well, is well suspended, relatively light and forgiving and when you get up to speed it's easy to maintain the pace, but it lacks that available "oomph" to quickly deal with unexpected obstacles.