The Stihl MS 251cbe chainsaw Specs. MS 251cbe farm boss. I go over the specs on the ms 251 c in this video. MS stands for motor saw. Check out Awesomedocumentary / awesomedocumentary
I'd say you're using the saw chain that came with your Wood Boss which is a green, anti-kickback chain. Do yourself a favor and switch to the yellow, aggressive chain. You'll cut thru that stuff like butter. I got the same saw and was amazed at the difference and it's no like it was any harder to control.