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FS 91

A professional bike-handle trimmer with simplified starting, improved air filtration and 30% longer run time than the FS 90.

FS 91
FS 91 is rated 4.5 out of 5 by 25.
Rated 5 out of 5 by from One serious weedwacker This is my first Stihl product and I'm very impressed. The smooth 4-cycle engine cuts through brush like butter. The first task I needed to do was to attach the cutting blade and cut down a bunch of oak brush saplings on our 5 acre property. This model was perfect for the job. Looking forward to years of reliable use from this product.
Date published: 2017-11-29
Rated 2 out of 5 by from Not enough torque/poor throttle response. I spent 13 hours with this machine and finally returned it to my dealer. (He was extremely polite when honoring my request.) I upgraded to the fs131 at almost the exact same weight. It's absolutely worth the extra money, and it comes with the harness.
Date published: 2017-11-18
Rated 5 out of 5 by from Excellent string trimmer. This is a replacement for the FS 90, that somebody would not return!!! The FS was still going strong, but since the other person would not return it I had to get another.
Date published: 2017-10-06
Rated 5 out of 5 by from Huge step up For this price, the step up in quality over the junky $70 weed eaters is awesome. Yes, 1 of these equates to 5 weed eaters but around my farm, trimming under a LOOOONNNNGGGG fence line to keep it from grounding on weeds and such is necessary, and the cheap ones just aren't up to the task.Power is there, the shoulder strap is amazing. It's very very good on fuel, and starts SO easily. It's best on fuel when you hold a steady amount of power continually instead of rev rev rev revving it constantly. The one thing I dislike is the clips to remove the head cap. They are so stiff when new, I had to use the handle of a screwdriver to press them in. Hurt my thumbs trying. I'd *strongly* recommend the lime green trimmer line, 2.4mm /.095", that stuff will cut the tiny trees down. You'll use a lot less of it too than the cheaper stuff.
Date published: 2017-10-04
Rated 5 out of 5 by from This product makes my job easier This product has plenty of power. It is easy to start and use. The bike style handlebars makes it easier to control and carry the trimmer, and reduces stress on the operator.The head is easy to change from the trimmer to the cutting blade.
Date published: 2017-09-21
Rated 5 out of 5 by from Perfect for any job around the farm! This machine is smooth and comfortable to operate! Between the handlebars and the shoulder strap, an amazing center of gravity is maintained with no strain on the back!
Date published: 2017-09-17
Rated 5 out of 5 by from Handier than pockets on a shirt. This is my second FS 91. My last one was "liberated " from my carport. After spending a day with a handsaw, I decided to pull the trigger on a new one. This newer model is really nice. Lots of improvements over my older one. I'm locking this one up this time. I will never do without one of these again. I only have 7 acres to care for, but this makes it so much easier. If I recall correctly, I paid more for my last one. These are a real bargain.
Date published: 2017-08-29
Rated 3 out of 5 by from Hoping for More! Purchased it, tried it, returned it!I bought this thinking that it would be more than enough for my 2 acres. However it lacked power and it bogged down and ran rough. Also head trimmer cord kept breaking off inside. When the dealer spooled the cord it did it and when I re-spooled the cord it did the same. Dealer said the cord looked old and brittle.For the professional landscaper these are probably small issues which are easily overcome, but for the price I thought it really wasn't worth the money. I ended up getting the FS130R (Loop handle) and the brush / saw cutter kit for a few dollars more. Lots of power doing the same job.
Date published: 2017-08-22
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