FS 240

Distributor Suggested Retail Price DSRP:   $629.95


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A bike-handle trimmer ideal for challenging cutting locations, like in ditches or around ponds.

The STIHL FS 240 is a heavy-duty professional trimmer that combines a rugged design with the versatility needed to attack extreme cutting situations. The easy-to-adjust bike handle provides comfort in use, and then swivels to simplify transport. This trimmer comes standard with our most popular professional cutting head, and can be utilized brush knife and saw blade attachments. Ideal for cutting ...Read More
Print Spec Sheets
FS 240 Specifications
DISPLACEMENT 37.7 cc (2.3 cu. in.)
ENGINE POWER 1.7 kW (2.3 bhp)
WEIGHT* 7.0 kg (15.4 lbs.)
FUEL CAPACITY 750 cc (25.4 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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    Simplified Starting Procedure
    To get started, simply pump the fuel primer, set the choke and pull the starter cord. The built-in stop switch allows the user to turn off the engine with a simple press of the button. When the engine is off, the throttle lock automatically returns to the “start” setting. Your power tool will be ready to be started when you’re ready to get back to work.

    See it in action!
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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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    Bike Handle
    When used in conjunction with a harness, the bike handle allows the machine to be easily guided, enabling a smooth horizontal mowing action to cover large areas quickly and efficiently. With soft grips for increased comfort, the bike handle provides greater control and helps reduce operator fatigue.

    See it in action!
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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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    IntelliCarb™ Compensating Carburetor
    The IntelliCarb™ Compensating Carburetor measures the air pressure on the clean side of the air filter and adjusts the metering diaphragm in the carburetor. This keeps the RPM at a consistent level, even when the air filter begins to clog.
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    Tool-Free Handle Adjustment
    The central wing nut enables easy adjustment without the use of tools. For transportation and space-saving storage, the handle can be rotated 90°.
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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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    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

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 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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    •2.6 oz. bottle makes 1 gallon mix

    •5.2 oz. bottle makes 2 gallon mix

    •6.4 oz. bottle makes 2 1/2 gallon mix

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    STIHL recommends a mix of 50:1 high-quality 89 octane or higher unleaded gasoline to STIHL engine oil. This same mix ratio should be used during break-in.

  • No-Spill® Fuel Containers Zoom
    No-Spill® Fuel Containers
    The latest advance in gasoline can technology is here with No-Spill® fuel containers. Featuring a special treated body for low permeation, thumb-button flow controls for easier pouring, and a wide and stable base design to reduce upsets, No-Spill® fuel containers help ensure that the gasoline goes into your tank, not on the ground or into the air. Fill even smaller-sized tanks without spilling – flow stops automatically when the tank becomes full. With 1¼-gallon, 2 ½-gallon and 5-gallon sizes available, you’re sure to find one that fits your needs. Ask your local STIHL Dealer about No-Spill® fuel containers. Don’t settle for anything less.

    Meets California Air Resources Board Phase II requirements for sale or use in California. No-Spill® gasoline cans are tested and certified to ASTM F-852-99 standard specification for portable gasoline containers for consumer use and our diesel and kerosene cans are tested and certified to ASTM F-976-02 standard specification for portable kerosene and diesel containers for consumer use.

  • Commercial Round Line Zoom
    Commercial Round Line
    STIHL uses a custom blend of polymers to produce a trimmer line with the best all-around characteristics of abrasion resistance, flexibility over time and temperature ranges, and welding resistance. Commercial Round line comes .095” and .105” diameters.



     Trimmer Chart
For Your Safety
  • STIHL Landscaper Series™ Gloves Zoom
    STIHL Landscaper Series™ Gloves
    Exclusive deerhide leather provides fantastic wear properties and excellent sense of touch and feel. Naturally soft leather provides all-day working comfort. Sizes available S, M, L, XL.
  • White Ice Glasses Zoom
    White Ice Glasses
    Protection and comfort is no sweat with the White Ice Protective Glasses from STIHL. They meet the ANSI Z87.1 standard and come in multiple lens color options – each one wrapped in an icy-cool white frame. They feature rubber temples that prevent slippage, a comfort-fit style that accommodates almost all face sizes and polycarbonate lenses that block out 99% of harmful UV rays. It’s hassle-free protection for the workplace or at home.
  • Basic Hearing Protector - NRR 23 Zoom
    Basic Hearing Protector - NRR 23
    Padded stainless steel spring wire headband maintains constant pressure. Easy to adjust. Noise Reduction Rating (NRR): 23. Meets ANSI S3.19-1974 standard.

    Available color: Grey
  • Reflective Safety Vest Zoom
    Reflective Safety Vest
    Class II reflective vest that is required for working along highways meets ANSI/ISEA 107-2004 standard. Longer tail in the back provides maximum reflective exposure for users running backpack blowers. Two front pockets and one chest pocket provide utility for carrying necessary items. Available sizes: Medium, Large, X Large, XX Large

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Rated 4.8 out of 5 by 19reviewers.
Rated 5 out of 5 by Heavier but a little stronger than the discontinued fs250 It hasn't let me down.very robust,even with the .095 line.probably overkill for most applications.as described, it's strong on roadside ditches and heavy undergrowth.very torque-strong;it winds quick and hard. October 15, 2016
Rated 5 out of 5 by Buy this trimmer!! This thing is a beast! I immediately put it to work in a 5 acre pasture and it has run flawlessly from day one! Always starts first pull, has plenty of power to cut through the thickest brush, and is easy on the back and arms. The Stihl harness that's includes really does eliminate most of the operator fatigue once you get it set up with a proper balance! I would recommend this trimmer to anyone who only wants to buy a trimmer one time in their life! August 19, 2016
Rated 5 out of 5 by Runs Great! Starts great and runs like a champ so far. My 16 year old son has run it the most and I have not had to help him with it at all. August 15, 2016
Rated 5 out of 5 by Great power that starts easily with good gas efficiency. I debated hard on choosing between the FS 240 or 130. Can't comment on the 130, but very glad I purchased the FS 240. It has the power I need and has worked flawlessly. I spent many hours clearing new trails on my hunting land this spring, which was my primary criteria in selecting the FS 240, and it worked great. With sharp blades it will saw through saplings I assumed I would use my chainsaw on. You definitely want to use the harness to carry the weight, but with the harness I could do several hours of work nonstop. In addition to the power of the 240 it starts flawlessly and has surprising gas efficiency. Overall, just a fantastic tool. My only question is the harness. While it works OK, it does not have the same feel of quality and durability of the 240. June 13, 2016
Rated 1 out of 5 by Put your old trimmers out by the curb I gave the protective ear muffs a poor rating only because there's no blue tooth.I understand that safety is paramount , but as a home owner a little creature comfort would be nice. Commercial users can have the boring muffs, homeowners muffs , maybe noise canceling with blue tooth link.The 240 is OUTSTANDING!!!, I can't imagine what you could do with a commercial unit .I tried my buddies 110 and was impressed with that , but working under the premise that more is better ,bought the 240, I was, and you too, will be amazed .Using the trim head, make sure you have nice comfortable running shoes . It will eviscerate grass at mildly quick sprint.The ditch line I used the grass blade . You could possibly use this to harvest winter rye or wheat .......if you had too.....just saying. You prepers reading this ???The harness is easy on the back and makes life easy . Wear safety gear , you will be green from head to foot.Yup it's a little early but had to try it out on my food plots , the 240 with the grass blade was more than adequate . Getting into the tight spots was awesome . I never planned to do this much with the unit in that quick of a time . Oh yeah , engineering ,you put hand warmers on a chainsaw why not put some LED lights on that 240.....sun was hanging low and I wanted to keep going......upset the neighbors to no end.Today, using the saw blade, I plan to cut some walking trails and shooting lanes through the woods. May 22, 2016
Rated 5 out of 5 by Lots of power, runs great! Starts on 3rd pull after 12 months! Getting 3 times more work done than my old craftsman. Comfort/power/easy start, one pull starts after warmed up.Wanted a Stihl since I 1st heard of them. Wish I would have gotten on sooner! If you have heavy growth (spring in nw washington) then I need this much power. Please use non ethanol fuel for storage with gas additive, you won't regret this. May 16, 2016
Rated 5 out of 5 by Purchase after using a buddies machine. I purchased this machine after I used a buddies FS350 for a few days. I love my FS240, the only thing that I have any issue at all with is, the handles on the 240 are about 1 inch shorter in height that the 350. Now, the 240 has more CCs but it doesn't have the antivibration system, so the handles set a tad lower which caused my hands to cramp after so long. I would definitely buy this machine again and again! My only other suggestion would be to purchase to Forestry harness. It's much more comfortable if you are going to be using this machine for hours a day. November 17, 2015
Rated 5 out of 5 by Amazing power!! I bought one a few weeks ago for the 20 acres we have? Was a lil worried if it was going to be a lil heavy?? After about 35 hrs on it I can tell you...I could hardly tell I wore it for hours at a time. Being a 40-45yr old female 5' 9" lil over 150lbs with back & elbow issues....the handlebar grips are very comfortable and make it easy to swing! The harness once adjusted right makes holding it for hours easy! Removing it off the clip is as easy as pie to remove when finished. The price was a lil steep then what I wanted to pay but as an investment to have for years to come I feel very happy with my purchase. Plenty of power to cut weeds thigh high too! June 12, 2015