My chain is not oiling on my ms200t how can i fix it?

Sorry not had much to do with the Stihl top handle saw, however washing the tank out does not always clear the suction filter on the end of the hose, i think you will have to remove the pump from the side of the saw and clean out the oil ways properly, there will also be a gear driven by the sprocket, check this for wear.

Husqvarna man
January 2010