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Direct product selection: Petrol brushcutters for landscape maintenance

FS 91

Manoeuvrable brushcutter for landscape maintenance

General

FS 91
FS 91
FS 91
FS 91

For working on large areas of tough grass. A simplified start-up sequence for convenient starting, bike handle, control handle with stop button, 4-MIX® engine with larger tank for greater battery life, rigid drive shaft, double shoulder harness.

Versions



Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Technical specifications

FS 91

Technical specifications

Technical specifications Value
Displacement 28,4 cm³
Power output 0,95/1,3 kW/bhp
Weight 1) 5,8 kg
Sound pressure level with plastic tool 2) 96 dB(A)
Sound power level 2) 107 dB(A)
Vibration level, left/right with plastic tool 3) 5,5/4,5 m/s²
Total length 4) 180 cm
Cutting tool Grass cutting blade 230-2

1) Weight excluding fuel, cutting tool and guard
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
3) K-factor according to DIR 2006/42/EC = 2m / s ²
4) Without cutting tool

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Features

FS 91

Standard equipment

  • STIHL 4-MIX® engine Zoom
    STIHL 4-MIX® engine

    You can always rely on STIHL to keep setting new benchmarks this time with 4-stroke mixed lubrication technology. The STIHL 4-MIX® engine, which runs on a fuel-oil mix just like a 2-stroke, offers the benefits without the compromises of 4-stroke power. STIHL 4-MIX® engine technology provides fast acceleration, more power, added torque, lower noise, reduced emissions and increased fuel efficiency to complete jobs quickly, quietly and more easily.

  • Multi-function control handle Zoom
    Multi-function control handle

    Easy, comfortable thumb-operated control means the operator's hand never leaves the handle.

  • Bike handle Zoom
    Bike handle

    When used in conjunction with a harness, the bike handle enables a smooth mowing action. The bike handle allows the machine to be easily guided, making it ideal for working on large areas and thus reducing fatigue.

  • Anti-vibration system Zoom
    Anti-vibration system

    Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.

  • ADVANCE Universal Harness Zoom
    ADVANCE Universal Harness

    Soft padding makes work more comfortable during longer jobs.

  • Bike handle adjustment Zoom
    Bike handle adjustment

    The central clamp enables the ergonomic bike handle to be easily adjusted without tools to suit the height of the user. The handle can be rotated by 90°, making it more compact for transport and storage.

  • Stop button Zoom
    Stop button

    You do not need to control the stop button when restarting. The engine can be started at any time.

  • Manual fuel pump (Purger) Zoom
    Manual fuel pump (Purger)

    A small fuel pump delivers fuel to the carburettor at the touch of a button. This reduces the number of starting strokes required following extended breaks in operations.

  • Air filter with long service life Zoom
    Air filter with long service life

    The easily accessible paper filter with a long service life means it can go for long intervals without changing. (similar to illustration)

  • Goggles Zoom
    Goggles

    It is important to protect your eyes from flying particles and harmful UV radiation. Therefore a pair of safety goggles/glasses are supplied with the the machine. Note: Additional face protection must be worn when working with brushcutters.

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Cutting Tools

FS 91

Cutting Tools

    • TrimCut mowing head C 32-2 Zoom
      TrimCut mowing head C 32-2

      Double line, for mowing and thinning work. Mowing lines are extended by hand.

    Versions

    • GrassCut Grass cutting blade (8 teeth) Zoom
      GrassCut Grass cutting blade (8 teeth)

      Made of steel with 8 teeth for mowing thick, dry grass and reeds.

    Versions

    • Grass cutting blade 230 mm (8 teeth)

    • GrassCut Grass cutting blade 250-44 Zoom
      GrassCut Grass cutting blade 250-44

      Low-throw, steel grass-cutting blade with 44 teeth (diameter: 250 mm). Clippings are not scattered, and the risk of stones flying up as debris is low. Ideal for mowing tough, dry grass and stubborn weeds. Suitable for reeds and bushes. Use only with the universal guard.

    Versions

    • Grass cutting blade 250-44

    • DuroCut mowing head 20-2
      DuroCut mowing head 20-2

      Double lines, for mowing and thinning work. Up to four lines can be easily inserted. Compatible with many different sizes and types of mowing line.

    Versions

    • AutoCut mowing head C 26-2 Zoom
      AutoCut mowing head C 26-2

      Double lines, for mowing and thinning work. Mowing lines are automatically extended when the mowing head is tapped on the ground.

    Versions

    • SuperCut mowing head (2 line) Zoom
      SuperCut mowing head (2 line)

      Double line, for mowing and thinning work. Mowing lines are automatically adjusted for optimal cutting length.

    Versions

    • AutoCut mowing head 36-2 Zoom
      AutoCut mowing head 36-2

      Two lines, for mowing and clearing work. Mowing lines are automatically extended by tapping the mowing head on the ground.

    Versions

    • DuroCut mowing head 20-2
      DuroCut mowing head 20-2

      Double lines, for mowing and thinning work. Up to four lines can be easily inserted. Compatible with many different sizes and types of mowing line.

    Versions

    • GrassCut Grass cutting blade (2 blades) Zoom
      GrassCut Grass cutting blade (2 blades)

      Steel double blade, reversible. For working on areas of tough grass.

    Versions

    • GrassCut Grass cutting blade (2 blades) Zoom
      GrassCut Grass cutting blade (2 blades)

      Steel double blade, reversible. For working on areas of tough grass.

    Versions

    • GrassCut Grass cutting blade (4 blades) Zoom
      GrassCut Grass cutting blade (4 blades)

      Made of steel. With four cutters for mowing thick, dry grass and reeds

    Versions

    • GrassCut Grass cutting blade (8 teeth) Zoom
      GrassCut Grass cutting blade (8 teeth)

      Made of steel with 8 teeth for mowing thick, dry grass and reeds.

    Versions

    • GrassCut cutting blade (40 teeth) Zoom
      GrassCut cutting blade (40 teeth)

      Grass cutting blade with forty teeth. For mowing tough grass.

    Versions

    • Grass cutting blade 250-40 Special

    • GrassCut Grass cutting blade 250-44 Zoom
      GrassCut Grass cutting blade 250-44

      Low-throw, steel grass-cutting blade with 44 teeth (diameter: 250 mm). Clippings are not scattered, and the risk of stones flying up as debris is low. Ideal for mowing tough, dry grass and stubborn weeds. Suitable for reeds and bushes. Use only with the universal guard.

    Versions

    • Grass cutting blade 250-44

    • BrushCut Brush knife Zoom
      BrushCut Brush knife

      Brush blade made of special steel. Ideal for thinning and clearing tough, matted grass and scrub. Also the pruning of thorn hedges. For use with universal protection.

    Versions

    • WoodCut Circular saw blade, scratcher-tooth Zoom
      WoodCut Circular saw blade, scratcher-tooth

      Special steel tool for mid and high-performance brushcutters. For gnarled bushes and thin tree trunks. Must be used with appropriate stop kit. Only approved for certain bike handle machines.

    Versions

    • WoodCut Circular saw blade, chisel-tooth Zoom
      WoodCut Circular saw blade, chisel-tooth

      Special steel tool for mid and high-performance brushcutters. For gnarled bushes and thin tree trunks. Must be used with appropriate stop kit. Only approved for certain bike handle machines.

    Versions

    • GrassCut 250-32, low spin
      GrassCut 250-32, low spin

      Flying stones and gravel often create problems when mowing with clearing saws on traffic islands or in public parks and green spaces. STIHL has the answer: the low-spin 250-32 grass-cutting blade with KWF certificate reduces the safety distance from objects and vehicles to three metres. Thanks to the special tooth shape, the risk of particles flying around is reduced to a minimum. The result is greater safety, maximum working comfort and quicker results. Article 4001 713 3813 for FS 80 , FS 85 , FS 89 , FS 91 , FS 111 , FS 131 , FSA 130, FSA 135, FSA 130 R, FSA 135 R, FS 94 RC-E , FS 94 C-E , FSA 90 R, FSA 90, FS 240 C-E, FR 131 T, FR 480 , FR 480 C-F, FR 410 C-E , FR 460 TC-EM. Article 4001 713 3812 for FS 260 C-E, FS 311, FS 360 C-EM , FS 410 C-EM ,FS 410 C-EM L, FS 410 C-EM K , FS 460 C-EM K , FS 490 C-EM K , FS 490 C-EM K, FS 460 C-EM , FS 460 C-EM L , FS 490 C-EM , FS 490 C-EM L, FS 510 C-EM, FS 560 C-EM.

    Versions

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Accessories

FS 91

Accessories

    • STIHL Smart Connector Zoom
      STIHL Smart Connector

      The Smart Connector can be attached to petrol-driven, electric, and cordless products, enabling it to deliver important information about your STIHL power tool via Bluetooth® 4.2. The Smart Connector offers entirely new functions and services, as a basis for device management both in your home garden using the STIHL connected app, and for managing your machine fleet using the STIHL connected Portal.

    Technical specifications Value
    Weight 20 g
    Dimensions (l x b x h) 53 x 42 x 14 mm
    Signal range ca. 10 m
    Running time per battery charge ca. 1 Year
    Connectivity BLE 4,2
    Battery 3V CR 2.032

    Versions

    • ADVANCE PLUS forestry harness Zoom
      ADVANCE PLUS forestry harness

      Ergonomically designed harness offering great freedom of movement thanks to the freely suspended leg protection. Very light and with comfort carry ring for quickly attaching and removing the clearing saw. For FS 310 - FS 560.

    Versions

    • Hip pad Zoom
      Hip pad

      For fitting to ADVANCE PLUS harness without hooks.

    Versions

    • Hip pad

    • ADVANCE PLUS universal harness Zoom
      ADVANCE PLUS universal harness

      With quick release system for fast connection and disconnection of brushcutters. Suitable for FS 50 - FS 560

    Versions

    • ADVANCE X-TREEm forestry harness Zoom
      ADVANCE X-TREEm forestry harness

      Offering outstanding ergonomic design, specially developed for long periods of forestry work using circular saws. Highly comfortable to wear due to the length-adjustable back section and infinitely variable load distribution between the shoulders and hips, for FS 89 – FS 560, and FSA 90.

    Versions

    • ADVANCE universal harness, fluorescent orange Zoom
      ADVANCE universal harness, fluorescent orange

      High visibility. Perfectly complements protective clothing when mowing in hazardous areas, with a comfort carry ring for quickly attaching and removing the clearing saw, for FS 50 – FS 560 and FSA 90.

    Versions

    • ADVANCE universal harness, fluorescent orange

    • Guards for line mowing heads and PolyCut Zoom
      Guards for line mowing heads and PolyCut

      Guard for working with mowing heads. Provides protection against flying debris but still enables a clear view of the area to be mown.

    Versions

    • Tool bag Zoom
      Tool bag

      A practical way of transporting tools. Two compartments. Easily attached to the universal or forestry harness.

    Versions

    • Protective cover for brushcutters Zoom
      Protective cover for brushcutters

      Perfect transport protection for the engine housing of brushcutters and clearing saws. For FS 38 - FS 450.

    Versions

    • Stop kit for circular saw blades Zoom
      Stop kit for circular saw blades

      Stop kit and protection for circular saw blades. For accurate cutting with a circular saw blade.

    Versions

    • Stop kit for circular saw blades, Ø 200 mm

    • FH 145° scrub cutter Zoom
      FH 145° scrub cutter

      For cutting close to the ground and for low-spin mowing in very narrow spaces. Flexible adjustment mechanism, space-saving carrying position. Weight: 1.5 kg. Fits FS 90, FS 91, FS 100, FS 111, FS 130 and FS 131.

    Versions

    • FH 145° scrub cutter

    • Chest belt Zoom
      Chest belt

      Ensures the shoulder straps are securely positioned. For BR 200, BR 350, BR 430, BR 450, BR 500 and BR 600.

    Versions

    • ADVANCE forestry harness Zoom
      ADVANCE forestry harness

      Freely suspended leg protection provides excellent freedom of movement. Extremely ergonomic and comfortable for forestry use with circular saw blades. Very light. Tool bag also available. Suitable for FS 100 - FS 550.

    Versions

    • ADVANCE universal harness Zoom
      ADVANCE universal harness

      Extremely ergonomic, comfortable and light. For strength-saving mowing and shredding. Chest belt and tool bag also available. Suitable for FS 50 - FS 550.

    Versions

    • Universal guard Zoom
      Universal guard

      Excellent protection against flying cuttings or stones. With or without an apron for mowing heads.

    Versions

    • Rotary scissors RG Zoom
      Rotary scissors RG

      Tool attachment for brushcutters. For effective removal of weds and grass from various surfaces such as gravel and paved areas. Enables low-spin mowing, for example along roads and around traffic islands. Complete functionality in the attachment gearbox. Powerful cut, tends not to become blocked with cuttings, easy and quick blade change. Fits: FS 91, FS 94, FS 111, FS 131, FSA 130.

    Versions

    • Upgrade Kit GrassCut 250-32
      Upgrade Kit GrassCut 250-32

      For converting clearing saws that have a nylon mowing head to the GrassCut 250-32 low-spin grass-cutting blade, including all attachments and transport guard. Consists of: 1 × GrassCut 250-32 1 × metal tool transport guard 1 × rider plate 1 × thrust washer 1 × collar nut For FSA 130, FSA 135, FS 89, FS 91, FS 94, FS 111, FS 131, FS 240, FR 131 T, FR 410, FR 460 and FR-KM.

    Versions

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Documents

Owners manuals and safety brochures

Languages Date Link
manual icon de 26.04.2023
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