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MS 171

A lightweight, fuel-efficient chainsaw with reduced-emission engine technology.

MS 171
Rated 4.4 out of 5 by 65reviewers.
Rated 5 out of 5 by Awesome Awesome saw for around the home. I have used this saw to help heat my home this past year. I should have bought the next size up, but have no complaints. It definitely did the job. May 8, 2016
Rated 5 out of 5 by Light weight and tons of power - very reliable I have used this saw to cut down several trees in the 4-6inch size without issue. It has fired up every time I needed it, and ran particularly well in cold weather. I find the light weight is awesome for getting the job done. I am extremely pleased with this saw and am glad I chose to go with it. I really cannot emphasize enough how solidly built this saw is, it has handled everything I have thrown at it with ease. May 2, 2016
Rated 1 out of 5 by this product is junk Not satisfied, wouldn't purchase this product ever again. I have purchased several stihil chainsaws when you moved to plastic components the saw is now junk. I am working more on maintaining the saw instead of the work at hand. "Unsatisfactory" April 9, 2016
Rated 3 out of 5 by good occassional use saw I purchased this saw to replace a 15 year old Echo that was used for trimming trees and cutting small firewood. I recommend the saw because it works as advertised and as my local dealer told me it would, specifically as a recreational saw. My dealer told me not to run more than a single tank of gas through it per day because he has seen guys burn out this saw in under one month. A full tank of gas is literally 10-15mins of cutting, so don't plan on managing any medium sized project with the saw. I did not upgrade to the yellow chain as recommended by some.A few comments on topics mentioned by others in the reviews:Power: it is as advertised. About the same as my small Echo and it definitely won't blow you away, but Stihl doesn't claim it will.Fuel Efficiency: The saw is very thirsty -- this is the first saw I've owned with the new emissions control hardware, so perhaps that has something to do with it. Single tank of gas lasts maybe 15 mins.Starting: yes, this saw can be a bear to get started. I've learned a few tricks with mine - like number of pulls at each choke level -- when to lock throttle and when to pull when in run mode. This has helped a lot with starting and I suggest taking some notes on the sequence/s you use when attempting to start your saw.Plastic: yes, lots of plastic and it does feel somewhat flimsy compared to even to my old cheap Echo. That said, it doesn't seem to impact performance and the saw is quite light and easy to handle.Overall I recommend the saw, but if you are going to be using only rarely it is probably much cheaper to buy a different brand from a big box store. March 28, 2016
Rated 5 out of 5 by Tricks or hacks to get ur saw to peak performance quickly and easily There is a break in time with any engine and with my saw it was about 5 hours total use.. If ur saw dies when u try to hit the throttle when u first get it set loosen the chain slightly let it run with the chain break on at half choke an extra 30 seconds or so por a few drops of oil along the chain at this point. Now try to run the saw run it for about 20 or 30 minutes at full throttle preferably through rounds of 12 to 14inches. Shut down let cool adjust chain run again for30 minutes doing this 5 to 10 times should break in the engine. For cutting through thicker harder stuff sharpen the chain at about 20 degree angle it makes for smother cutting easier cuts at the saw stays sharper longer... A 30 degree angle is great for stronger saws but it's just to great an angle for the power of this saw... I've used my saw to cut 36 inch maple rounds had to use a wedge to break the center 4 inches left. Happy cutting March 28, 2016
Rated 5 out of 5 by very tough saw I just bought this saw and have used it to clear land. this saw is very dependable and very tough. I cut down a 2 foot willow tree and it fell on the chainsaw we took a skid steer and moved the tree and the saw was just fine I love this saw it is a little under powered so I recommend putting a 14 inch bar the 16 in is just a little under powered. February 1, 2016
Rated 5 out of 5 by Awesome chainsaw! Purchased for cutting up downed limbs for my landscaping company. It has handled cutting down small trees, clearing alley overgrowth, and large downed limbs. All with ease.I will say that the stock chain that comes with the saw dulls very quickly.Overall this saw is a gem! January 20, 2016
Rated 4 out of 5 by used it for everything I bought this saw three months ago for a small tree cutting service I run. So far I have used this saw to cut a red oak from the top down, I have cut down about a dozen dead trees with it and often used it to limb. the saw AV is great, and the weight and power ratio are good. the saw is easily maintainable by anyone and the 14 inch bar is great for tight spaces. this saw has earned a place next to my larger saws. November 17, 2015
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