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FS 310

FS 310
This rugged professional bike handle trimmer is versatile, environmentally conscious and comfortable to use.

Product Description

Balanced from top to bottom, the STIHL FS 310 trimmer combines the best of all worlds so you can better trim yours. Featuring a powerful, fuel-efficient and low exhaust emission engine, this trimmer keeps professionals like you working longer with fewer refuels. A great convenience feature is its easy-adjust handle bar which swivels for easy transport and storage. The FS 310 also comes with a deluxe double harness that is designed to distribute the weight across the user’s shoulders for optimal balance and support. It also boasts a vertical pleated air filter for extended service life. And thanks to its four-point anti-vibration system, operating this trimmer is smooth and comfortable. This trimmer accepts a range of metal cutting attachments and circular saw blades that can be used with the appropriate accessory kit. This is one well-rounded performer that doesn’t skimp on the performance.

Model Features

  • 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

  • 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).
  • 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!
  • 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.
  • 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.
  • 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.
  • 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°.
  • 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.
  • 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.
  • Upright Translucent Fuel Tank
    Allows operator to easily check fuel level before starting work. Upright position makes it easier to refill.
  • Protected Spark Arrestor Muffler
    Has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
  • Protected Spark Plug
    Protected yet easy to change.
  • Heavy-Duty Steel-On-Steel Clutch
    Centrifugal clutch is designed to reduce slippage.
  • Protected or Enclosed Control Cables
    Eliminate dangling and loose wires.
  • Air Filter Cover
    Easily removed for fast and easy filter cleaning or replacement.
  • Throttle Trigger Interlock
    Must be depressed before the trigger can be activated.
  • Start/Run/Stop Controls on Handle
  • Protected Choke Lever/Knob
    Helps prevent damage.
  • High Tech Polymer Housing
    Housings are lightweight, withstand greater impact and are corrosion-resistant.
  • Fully Lined Drive Shaft
    Provides smooth operation and less vibration.

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.)
CUTTING SWATH
16.5"
POWER SOURCE
Gas
*Weight without cutting attachment or deflector.

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.

Reviews

FS 310 is rated 3.6 out of 5 by 11.
Rated 3 out of 5 by from I think this is the trimmer I bought. I bought a trimmer and some extra line. Here’s the issue I’m having with it. To add more line you have to measure ut, get it in there and go through hoops. For such an expensive trimmer, why did you make it so difficult for an average person to refill this? I’m sure I can go spend a bunch of money and have a cartridge I can change out, but so I don’t have to spend more $ I’ll have to wait for the boyfriend to get to it. Geez!
Date published: 2017-10-15
Rated 4 out of 5 by from Needs work on ergonomics, durability. Will have to take my FS 130 Trimmer in for warranty work. It has always been hard to start, then over revs when started. (Scary!) Right now, the shut off switch is not operable and I have to place it in CHOKE , then throttle press to shut it off. The harness helps and I have finally found a handlebar forward position that is the most comfortable for me, but it still must be pressed downward to grass level. On thepositive side it is very powerful and the brush cutter triple blade works pretty well on Himalayan blackberry canes of which we have thousands. It is not particularly light and if the string hits a fence wire or a solid object, the string will retract into the string dispenser and one has to remove the cap and re position the strings.
Date published: 2017-08-02
Rated 3 out of 5 by from Hit and miss Ive had mine for a couple years now, the first time I used it, it ran great! Lotsa power and it really cut through some of the thickest stuff with ease. However, every use since then has been a struggle.....IF I can get it started, it runs like its constantly bogged down. Sometimes it'll clear up and run well, sometimes it wont. My biggest complaint is the difficulty getting it started after several uses. Ive run nothing but the Stihl brand moto mix in it since new. I wouldnt say dont get one, because when it runs good its a monster......just be prepared for lots of pulling on that string to get her started!
Date published: 2017-06-11
Rated 1 out of 5 by from Ran Twice I was able to use it twice. Now it won't start. I suspect that it floods way too easily. I'll be taking it back to get a different brand.
Date published: 2017-05-07
Rated 5 out of 5 by from Quality Machine Bought the FS 310 a few months ago to clear the brush and weed overgrowth on my 2.5 acre property, which the previous owners had allowed to accumulate over the years. Have to say I'm very impressed with what this machine can do, particularly when using the Stihl Brush Blade. The key to using the Brush Blade on thick woody material is maintaining sharp cutting edges. One note regarding the recommended Valve Clearance Inspection interval... in my opinion 100 hours of operation is too long before having the VCI done. I now have about 15 hours running time on my FS 310, and while the engine has been starting and running without issue, I decided to check the valve clearances today... I found that they were at 0.007" & 0.008", whereas the spec calls for them to be set at 0.004". After making the valve clearance adjustment, I also checked the spark plug gap and found that it was a bit wide, so I reset the gap to the spec of 0.02". After re-installing the shroud, I fired it up and immediately noticed how much smoother the engine was, along with improved throttle response. Very happy with this FS 310, and would recommend it to anyone looking for a serious trimming - brush cutting machine.
Date published: 2016-10-27
Rated 3 out of 5 by from 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.
Date published: 2014-11-30
Rated 5 out of 5 by from 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!
Date published: 2014-02-04
Rated 1 out of 5 by from 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.
Date published: 2013-08-25
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Optional Accessories

  • Straps and Harnesses
    They distribute the load from your hands to your shoulders. They also help reduce operator fatigue and make it easier to use trimmers, brushcutters and clearing saws for extended periods.
  • Deflectors
    Protect yourself from flying debris while trimming. Check out our selection of deflectors and find the one that will help protect you.
  • Trimmer Line
    There's high-performance STIHL trimmer line for every operating condition. 
  • Trimmer Heads & Blades
    Many trimmer heads and blades are available. Find out which ones to use with this model in this chart.  

Standard Features

  • Common Features for Trimmers
    View the features common to many STIHL trimmers.

You Will Also Need

For Your Safety

Support

How to Wind a STIHL Trimmer Head - Video
Cutting Heads & Blades Selection Chart (PDF)
Download Instructions on How to Rewind Your Trimmer Head (PDF)
Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
Contact Us

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