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2018 STIHL FS 91

  • Pre-owned
  • Power Pac
  • FS91
  • Trimmer
  • General

2018 STIHL FS 91

A professional bike-handle trimmer with simplified starting, improved air filtration and 30% longer run time than the FS 90.

If you’re a landscaping professional who uses their trimmer for mowing applications, grab the powerful STIHL FS 91 trimmer. Its bike-handle design adds greater comfort and leverage, thanks to its redesigned rubberized grips. The trimmer also features one touch stop and a simplified starting procedure enabled by the semi-automatic choke lever. Its low-emission engine is paired with a larger fuel tank, delivering 30% longer run times when compared to the FS 90. The engine also includes improved air filtration and STIHL exclusive IntelliCarb™ technology for maximum RPM. And when the terrain gets tough, this trimmer’s solid steel drive shaft accepts a wide range of heavy-duty cutting heads, including metal blades, for maximum versatility.

Features may include:

Built in the USA
  • Indicates products that are built in the United States from domestic and foreign parts and components
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.
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.
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.
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.
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°.
Cutting Heads & Blades Selection Chart
  • Need help selecting a cutting head or blade for your STIHL trimmer or brushcutter?
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.
Fully Lined Drive Shaft
  • Provides smooth operation and less vibration
High Tech Polymer Housing
  • Housings are lightweight, withstand greater impact and are corrosion-resistant
Protected Choke Lever/Knob
  • Helps prevent damage.
Throttle Trigger Interlock
  • Must be depressed before the trigger can be activated.
Air Filter Cover
  • Easily removed for fast and easy filter cleaning or replacement
Protected or Enclosed Control Cables
  • Eliminate dangling and loose wires.
Heavy-Duty Steel-On-Steel Clutch
  • Centrifugal clutch is designed to reduce slippage
Protected Spark Plug
  • Protected yet easy to change.
Protected Spark Arrestor Muffler
  • Has large baffles which reduce noise level and contains a screen designed to reduce the emission of sparks.
  • Power Pac
  • Pre-owned
  • FS91
  • 2018
  • STIHL
  • FS 91
  • Trimmer
  • General
  • 0.95 kW (1.27 bhp)
  • 28.4 cc (1.73 cu. in.)
  • Source: Gas
  • 710 cc (24.0 oz.)
  • 5.8 kg (12.8 lbs.)*

Get an Estimate for Your Payment

  • Estimated Payment
  • Calculation is estimate only.

Advertised pricing excludes applicable taxes title and licensing, dealer set up, destination, reconditioning and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.