FS 90 R

Distributor Suggested Retail Price DSRP:   $329.95


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This low exhaust emission professional trimmer features a straight shaft and versatile cutting head options.

Featuring our proven low-emission engine and a loop handle, the FS 90 R STIHL trimmer is ideal for landscape professionals. Its solid, straight driveshaft works with a variety of cutting attachments—giving you more flexibility in trimming applications.

Print Spec Sheets
FS 90 R Specifications
DISPLACEMENT 28.4 cc (1.73 cu. in.)
ENGINE POWER 0.95 kW (1.27 bhp)
WEIGHT* 5.3 kg (11.7 lbs.)
FUEL CAPACITY 530 cc (18 oz.)
*Weight without cutting attachment or deflector.
Model Features
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    Shoulder Strap / Carrying System
    Using a shoulder strap or carrying system helps distribute the weight of the equipment for increased operator comfort and improved maneuverability.
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    Adjustable Front Handle
    Adjusts for comfort.
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    Fully Lined Drive Shaft
    Provides smooth operation and less vibration.
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    High Tech Polymer Housing
    Housings are lightweight, withstand greater impact and are corrosion-resistant.
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    Protected Choke Lever/Knob
    Helps prevent damage.
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    Start/Run/Stop Controls on Handle
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    Throttle Trigger Interlock
    Must be depressed before the trigger can be activated.
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    Air Filter Cover
    Easily removed for fast and easy filter cleaning or replacement.
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    Protected or Enclosed Control Cables
    Eliminate dangling and loose wires.
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    Heavy-Duty Steel-On-Steel Clutch
    Centrifugal clutch is designed to reduce slippage.
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    Protected Spark Plug
    Protected yet easy to change.
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    Protected Spark Arrestor Muffler
    Has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
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    Upright Translucent Fuel Tank
    Allows operator to easily check fuel level before starting work. Upright position makes it easier to refill.
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    Purge Pump Primer
    By pressing the bulb, this small fuel pump delivers fuel to the carburetor, reducing the number of starting pulls needed after an extended break between uses.
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    Multi-Function Control Handle
    Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operator’s hand never has to leave the handle.
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    Cutting Heads & Blades Selection Chart
    Need help selecting a cutting head or blade for your STIHL trimmer or brushcutter?

    Click here to view the Cutting Heads & Blades Selection Chart (PDF Format).
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    Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

    More Information

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    Reduced-Emission Engine Technology - Caring for Nature
    The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.

    More Information

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    Loop Handle (R)
    Loop handle grass trimmers and brushcutters are ideal for trimming between bushes and shrubs and other areas where space is limited.
Standard Features
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    Common Features for Trimmers
    View the features common to many STIHL trimmers.

Important Information
WARNING! Improper use of any trimmer/brushcutter can cause serious or fatal injury. Read, understand and follow all safety instructions in your instruction manual. To reduce the risk of injury from blade contact, circular saw blades may be used on FS brushcutters that have a limitstop, a bicycle handle and double shoulder harness and not on FS brushcutters with a "J" handle or loop handle. Other rigid blades may be used on FS brushcutters having a bicycle handle, a "J" handle or a loop handle equipped with a barrier bar. To reduce the risk of eye injury always wear proper eye protection. Always use the appropriate deflector for the type of cutting attachment, as explained in your instruction manual.
Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty. Learn More…
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Click to view the STIHL Limited Warranty Time Periods
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    Available color: Grey

Are you ready for a STIHL?

Rated 4.6 out of 5 by 278reviewers.
Rated 5 out of 5 by This product is awesome The FS90R is just amazing. I love it. It has plenty of power to go through the tough weeds. You can put a saw blade on it or grass blade and you will still have enough power. I am looking at getting a lot of Stihl FS110's I will recommend the FS90R to anyone. I am a real person, Stihl person. Love all my Stihl Equipment. They have never let me down. I will keep buying Stihl Equipment. October 17, 2016
Rated 1 out of 5 by motor locking up we have over 30 stihl products on hand (20 weed trimmers) we rotate 5 new trimmers in a year as the old ones go bad but the 90r have been locking up on us,4this last year that were 2 years old. we went down to the 70 model hoping this will be a better product. October 17, 2016
Rated 5 out of 5 by Great Trimmer I have always used the Box store trimmers and was getting tired of every other year running out to purchase another to replace the one that quit running. I have owned Rhobi, Troybilt, and Toro brand weed eaters which all have lasted about two years. I purchased this FS90r FOR residential use and and man does it have the power, it will take a little getting use to but I am very pleased with my purchase. It will start on the second pull every time. I have owned it for right at four months now and couldn't be happier. I also use the synthetic oil purchased at my local Stihl dealer. October 15, 2016
Rated 5 out of 5 by By far best trimmer I've used. I am a firm believer in you pay for what you get, and had no problem spending the extra dollar on this FS90 R. For those that claim there are issues, I almost guarantee operator error. I would recommend taking it to a dealer and asking for help. This trimmer cuts like butter, is extremely torquey, and goes through anything. Stihl, in my opinion and experience, is one of the best money can buy! October 14, 2016
Rated 4 out of 5 by Good features Trimmer does not always start on first pull. Takes several pulls to get it going instead of the one pull as told in store. October 12, 2016
Rated 4 out of 5 by Awesome. Excellent.The only flaw which was my fault on choosing was that it has a little to much power for my strength.I should have got the FS 70r October 10, 2016
Rated 5 out of 5 by So far so good!!! I only have about 3 hours on the machine so far but it starts easily and cuts well. I'll know more by next year this time. October 6, 2016
Rated 2 out of 5 by bad string design ? I own a number of stihl products that I do like. This one not so much.. Spend more time wrapping new string than the task itself. No matter what string I use. Trouble feeding and breaking off to easily. I know how a good weed eater should operate ! October 6, 2016
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