I must be unlucky.
The M-tronic seems to work well on the ms661 but is acting on my201T. I bought one a good while after the first mess of the launch, hopping that they have since made their home work. I wasn't impressed and it didn't took long to have troubles with the black solenoid. With the advices running on the net, I changed it for the new white version. Way better, but it declined too fast for my taste and ended with the same struggles, like having to pull 10 times to cold start it and still three times at each cut in the tree, stalling without reason. As I was fed up with it and it began to aging too, I bought a new one recently, should be good. No.
Lack of power. It's the stock version, but broken in now, so I can hope to get a little more with some mods, but still deceptive. I have to be gentle in the cut to not stall every 2 or 3 seconds with the bar even not fully burried. Same 10 pulls to cold start it, or refuelling. Often at least two pulls to hot start. Stalling too time to time when I hang it (gently) on its lanyard.
One can say it's a bad tunning and has to be resetted. I hoped, but ...
It's the fourth version of resetting that I'm aware of! The kind of "don't worry, it mades its thing alone, keep cutting".
If they say so ...
I'm seriously looking to mount a carb from a 200T.