☆ How to ☆ Stihl MS170 - MS180 w/ Walbro WT-215 adjustable carburetor upgrade & muffler mod

Running a 16" bar w/ 3/8 picco semi chisel chain. Swapped in a Walbro wt-215 fully adjustable carburetor and modified the muffler. Stock the saw was turning almost 15k and was way too lean on the high side. It&now set to 14k and seems to be much happier there. The swap was fairly straight forward and in my eyes worth the $35 it cost for an OEM Walbro carb. I usually try to avoid investing time & money on saws of this design. They can be rather frustrating. Conversely, in some cases like this one, they can also be made to run quite well if you&willing to invest the time.