My Servicing Dealer
Find a Specific Product: Trimmers & Brushcutters

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 4.7 out of 5 by 9.
Rated 5 out of 5 by from Quality and price The weedeates I bought are top notch and gets the rough jobs done with time to spare!
Date published: 2017-07-06
Rated 4 out of 5 by from Good product I bought this for my lawn business and it seems to be pretty good. It starts right away after doing all the start up procedure. The only reason I rate 4 stars is because I bought this to last a lot of hours and I have no proof of this yet so I will change review after some time has passed also the product guide was not clear on how to restring it but once I figured it out it was a piece of cake. Overall good experience so far.
Date published: 2017-05-25
Rated 5 out of 5 by from Sthil Fs 91 Love my new sthil fs91 very impressive weedeater lots of power easy to use very light and first of all thanks for my sales person Michelle from rainbow ag in Lakeport Ca thanks for recommending the sthil fs91 never been happy Best weedeater ever I highly recommend this product hats off to sthil great job
Date published: 2017-05-25
Rated 5 out of 5 by from Awesome job with blade at cutting small scrub brush. Had a FS 66 for over 40years and decided time to replace it. Have a FS40 for around the house that works great for grass trimming but needed a straight shaft to do heavy brush cutting. Had to take several breaks while using it. It worked harder than I wanted to. Would buy this product again, maybe in another 40years? Still have a very dependable 028Boss chainsaw I've had for over 40years also, and still us it.
Date published: 2017-05-20
Rated 5 out of 5 by from Still 91 trimmer Great tool very powerful and starts up first pull.
Date published: 2017-05-17
Rated 5 out of 5 by from You feel the quality every time you pick it up. Feels secure, starts like a champ, powerful enough to do more than I need. I'm so glad I took the dealers recommendation. I know it's the last trimmer I'll ever need.
Date published: 2017-05-15
Rated 5 out of 5 by from Stout as a mule Best trimmer that I've ever owned, probably pass it on to my kids and buy new ones when the time comes. Awesome product, STHIL is a name you can trust and is still king of the mountain.
Date published: 2017-05-12
Rated 3 out of 5 by from Hard starting and not as powerful as I had hoped First of all, the product is an FS90 - which the review choices say doesn't exist? Maybe that's part of the problem - I have some sort of expired model. Who knows? Followed the starting instructions to a T and will never start using that procedure. Finally took it back to store, where the guy starts it on first pull. I asked him to show me the procedure before he started - nope, just rips the cord and it starts. Well he did it by holding the throttle wide open. NOWHERE IN THE MANUAL DOES IT SUGGEST THAT. After returning home, the same problem continues - the only way it starts is by holding the throttle wide open - product manual is a joke, or this machine is a lemon. I'm not sure which.
Date published: 2017-04-29
  • y_2017, m_7, d_18, h_23
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_9
  • loc_en_US, sid_fs91, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_stihl
  • Seasonal Landscaping Tips
  • Special Offers from Your Local STIHL Dealer
  • Guides & How-To Videos
  • Maintenance Tips