STIHL FS 91 Petrol Brushcutter

Ideal for clearing long grass, cutting thick weeds and other landscape maintenance tasks, the STIHL FS 91 is a powerful petrol brushcutter with a stylish design, premium build and range of impressive features.

Overview of the STIHL FS 91 Petrol Brushcutter

Designed for use on extensive areas of land, the STIHL FS 91 Petrol Brushcutter is fitted with a robust drive shaft and compact, lightweight STIHL 4-MIX® engine, which is far more efficient but has much lower emissions than a conventional four-stroke engine. It is fully compliant with the European Union’s Stage V emissions directive.

Weighing 5.8 kg (without the fuel and cutting tool), this low-maintenance petrol brushcutter has a displacement of 28.4 cm³ and maximum power output of 0.95 kW (1.3 hp). It has a large fuel tank, giving you increased cutting time before you need to refuel. The sound power level is 104 dB(A), with a sound pressure level at the operator’s ear of 94 dB(A).

(Please note that the STIHL FS 91 Petrol Brushcutter’s fuel to oil ratio is 50 parts unleaded petrol to one part oil.)

The FS 91’s Cutting Equipment

The STIHL FS 91 Strimmer is supplied with a sharp metal grass blade and STIHL AutoCut mowing head. It has a cutting circle diameter of 420 mm.

The Benefit of a Manual Fuel Pump

Having a manual fuel pump reduces the number of strokes needed to start the FS 91 Brushcutter’s engine. This benefit is particularly useful after extended breaks in the machine’s operation.

Before use, actuate the pump several times to ensure there is sufficient petrol in the carburettor to start the machine.

A Simplified Starting Mechanism

The STIHL FS 91 Petrol Brushcutter’s stop button, located on the control handle, allows you to switch off the machine with minimal fuss. When you’re ready to resume work, this button automatically releases as soon as you actuate the pump, so the engine is ready to restart.

Long-Lasting Air Filter

The FS91 Brush Cutter is fitted with a high-quality air filter, which has an extremely long service life. When this filter does eventually need replacing, you’ll find it very easy to access.

An Ergonomically Designed Brushcutter

The FS 91 STIHL Strimmer is designed with a multi-function handle, which includes all of the machine’s controls. This handle can be operated with just one hand, and is suitable for use by left or right-handed people.

It has a design similar to a bike handle, and can be adjusted using the central clamping device, without the need for tools. And once your work is done, you can rotate this FS 91 bike handle up to 90 degrees for efficient transportation and storage.

Using the FS 91 Trimmer with a Harness

When used in conjunction with the Advance universal double shoulder harness*, the STIHL FS 91 Brushcutter’s bike handle design helps you achieve an exceptionally smooth cutting action. You’ll find the tool effortless to guide, which reduces fatigue and makes this the ideal brushcutter to use on bigger jobs.

(*This premium harness is included in the price.)

STIHL’s Anti-Vibration System

With your comfort further in mind, the STIHL FS 91 Petrol Brushcutter is fitted with a buffer and spring to dampen the engine’s vibrations before they reach the handle. This clearly makes the tool even more comfortable to use, once again reducing operator fatigue.

Available Accessories

You can purchase a range of accessories for use with this petrol brushcutter. These include a STIHL Smart Connector, RG Rotary Cutting Head, FH 145-degree Scrub Cutter Attachment, and Advance X-Vent Helmet.

The STIHL Warranty

STIHL is one of the oldest and most prestigious manufacturers of power equipment, anywhere in the world. This makes it a name you can trust if you’re buying a brushcutter.

For your added peace of mind, the STIHL Strimmer FS 91 is backed by a manufacturer’s 2-year domestic warranty (or 1-year commercial warranty).

Frequently Asked Questions

Q) Is STIHL FS 91 a 4 stroke?
A) Yes, the STIHL FS 91 is fitted with a compact, lightweight STIHL 4-MIX® engine.

Q) How many cc is a STIHL FS 91?
A) The FS 91 is a 28.4 cc petrol brushcutter.

Q) What is the fuel mix for a STIHL FS 91?
A) The fuel mix on this FS 91 STIHL Weed Eater is 50 parts unleaded petrol to one part oil.

Take a Look at the FS 91 in Action