FS 310

Distributor Suggested Retail Price DSRP:   $599.95

This rugged professional bike handle trimmer is versatile, environmentally conscious and comfortable to use.

This professional trimmer’s rugged design is ideal for heavy-duty jobs like mowing tough grass or clearing heavy vegetation. To ensure operator comfort we’ve packed this tool full of features like a four-point anti-vibration system, deluxe double harness and easy-adjusting, soft-grip bike handles. And for even more cutting strength, this trimmer is compatible with the STIHL SuperCut™ and STIHL Pol...Read More
Print Spec Sheets
FS 310 Specifications
DISPLACEMENT 36.3 cc (2.2 cu. in.)
ENGINE POWER 1.4 kW (1.9 bhp)
WEIGHT* 7.2 kg (15.9 lbs.)
FUEL CAPACITY 710 cc (24.0 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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    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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    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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    Anti-Vibration System
    STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
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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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    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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    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 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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    •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

    •12.8 oz. bottle makes 5 gallon mix

    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.

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.
  • 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

Are you ready for a STIHL?

Rated 4 out of 5 by 6reviewers.
Rated 3 out of 5 by Not a brush cutter I purchased this product hoping that it would be adequate to cut approx. 2 inch diameter volunteer Loblolly Pine saplings. The handle bar actually broke off after approx. 20 hours of work. I got a new handle installed. After 2 more hours the center piece that holds the handle bar broke. I think this product would be excellent for lighter uses but don't plan using it to cut many saplings. November 29, 2014
Rated 5 out of 5 by Good power for woody material up to 3.5" Due to the fire danger of fuel build up, I bought a FS310 to clear the sagebrush from under the pine trees on 20 acres. For clearing brush, this machine beats a chainsaw due to three things; no more bending over, no more throwing chain, and only 22 teeth to sharpen!I was torn between the FS310 and the FS250. My dealer talked me into the FS310. This is my first 4 mix machine. I am very happy he steared me this direction. The machine has plenty of power and fuel efficiency. For clearing woody stems it is nice to have the big chassis and vibration system. It'll take out 3.5" stems in one hit. If I move to the other side of the stem, I can hit it again and take out 5-6" boles.At 4480' mine had a slight low end bog. At the 40 hour valve adjustment, the dealer adjusted the carb to take care of that. Now, it's broken in and just plain screams! February 3, 2014
Rated 1 out of 5 by Hit or Miss on Starting Very unreliable as it will flood upon starting about half the time it is used. When that occurs you can forget about using it that day. The bike handle is about worthless for use around any object. The line constantly breaks even when using different kinds. When that occurs you have to stop, take the spool off, and manually feed- very time consuming and self-defeating. Between trying to start it and stopping to feed the line manually my cheap Lowe's special is a more efficient use of my time. August 24, 2013
Rated 5 out of 5 by Excellent Machine I wanted a higher power trimmer for both string trimming and cutting small trees. The FS 310 was more money than I wanted to spend but after the dealer showed the the features such as vibration dampening & full harness I decided to buy it and I have never regretted it!My home is 20 acres and I can spend hours trimming and clearing with the FS 310. The vibration damping is great along with the power of this machine. I am amazed at the size of tree I can cut down.This is my fifth Stihl product and I happy with each one. The quality is excellent. May 25, 2013
Rated 5 out of 5 by Stihl FS 310 Purchased to cut brush on 20 acres. This product does the trick. I have cut 3 1/2 " trees with this cutter. Has alot of power. I am cutting brush, small saplings, briars,thick vines of 40 yrs on family farm. My father has stihl FS 90 v. The only negative thing is the bicycle handles. I think they are too wide. I guess that I should do a Youtube video on the cutter. I did alot of research before buying this stihl product. the sales rep at local stihl dealer recommended the fs- 250. I did not want to go to small of a cutter. May 8, 2013
Rated 5 out of 5 by Wonderful time saver Before purchasing, I was very skeptical about this product. After watching some videos of it in operation, I was certain that they had gone before and "pre-trimmed" the trees to make the trimmer cut faster for the video. I have other STIHL products and knew the quality would be good so I went for it. To say that we were impressed would be an understatement! This thing is a hoss and will save us a tremendous amount of time. We do not use it as a trimmer, but rather solely as a brushcutter for clearing fence lines and paths through the woods. It really does cut small trees quickly. Anything up to 1/2" it doesn't even blink, amazing. I've cut up to a 3" and you will have to cut on 2 sides but it sure beats running a chain saw bending over for several hundred yards of clearing fence! Another thing that I was worried about was backlash or kickback and warping the saw blade. We have used it for about 30 hours and this have not warped it yet and the kickback doesn't exist unless you cut on the side that is rotating towards you. I would recommend buying a 2nd blade so you can quickly change and keep working. Sharpen the used blade when it's dark out or you get back to the house. The machine is very well balanced and the backpack style (w/ shoulder straps) harness is a MUST. Zero fatigue after 4+ hours of continual use and none of that normal sense of relief to get the darn thing off like I have when I use my homelite weedeater. At first I wanted to go back and purchase a 2nd one but with all the time we are saving I don't think we could keep it busy. April 3, 2013
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