STIHL FS 91 Petrol Brushcutter

Powerful petrol brushcutter for large areas

Absolutely ideal for long grass and landscape maintenance

High-torque STIHL 4-MIX® engine

Padded double shoulder harness conserves user strength and enhances comfort

Highly versatile with a wide selection of cutting tools

FS 91 Petrol Brushcutter: For working in large areas with tough grass

For working on large areas of tough grass. Simplified starting, bike
handle, control handle with stop button, 4-MIX® engine with larger tank for increased cutting time between filling, rigid drive shaft, Supplied with ADVANCE Universal double shoulder harness, metal grass blade and AutoCut mowing head.

Extend your domestic warranty from 2 to 3 years with the purchase of 5 litres of STIHL MotoMix® fuel and this product. Your STIHL Approved Dealer will register your extended warranty on the STIHL warranty database at point of purchase.

Features

The pictures shown are sample photos. The actual appearance of the equipment features and their specific attachment to the product may differ from the pictorial representations, but will have the same functionality.

STIHL 4-MIX® ENGINE

FOR FANTASTIC ENGINE POWER WITH LOW MAINTENANCE. The STIHL 4-MIX® engine is a four-stroke engine that does not require any oil circuit components, thanks to refuelling with an oil and gasoline mix. That’s why it’s more compact, more lightweight, and requires less maintenance than conventional four-stroke engines, while at the same time being powerful and offering a comfortable sound pattern. STIHL 4-MIX® engines comply with the European Stage V emissions directive.

LONG AIR FILTER SERVICE LIFE

ENSURES LONG CHANGEOVER INTERVALS. Thanks to its long service life, you rarely need to change the easily accessible filter. This saves resources and reduces maintenance effort.

MANUAL FUEL PUMP

FOR FEWER STARTING STROKES. The manual fuel pump reduces the number of strokes required to start the tool, making the start-up process quicker and easier This is particularly helpful after longer breaks in operation. To use it, actuate the pump several times before starting. This will ensure that there is enough petrol in the carburettor when starting.

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.

STIHL ANTI-VIBRATION SYSTEM

FOR MORE PLEASANT WORK. Vibrations can occur when you put your tools through their paces, and these are particularly noticeable in the grip area. The buffer and spring elements of the STIHL anti-vibration system reduce the transmission of engine vibrations to the handle area and therefore to your body. The result is that your tool is more comfortable to hold and your work is much less tiring.

SINGLE-HANDED MULTI-FUNCTION HANDLE

COMFORTABLE OPERATION. Thanks to the single-handed multi-function handle, you can control your tool easily and reliably with one hand. Because all relevant control elements are integrated in the handle, it can be operated by both right-handed and left-handed users.

TOOL-FREE HANDLE ADJUSTMENT

SET THE BIKE HANDLE POSITION. You can individually adjust the ergonomic bike handle (mowing handle) using the central clamping device. Thanks to the tool-free handle adjustment, you do not need any tools for this. The bike handle can be rotated 90 degrees for transport and space-saving storage.

STOP BUTTON

RESTART WORK QUICKLY. With the stop button, you can switch off your tool quickly and easily for a short break, for example. As the button springs back to its original position after actuation, the engine is immediately ready to start again. This provides more comfort after breaks and increases your work efficiency.

Technical details

Displacement	28.4 cm³
Power	0.95 kW
Engine power	1.3 HP
CO2	877 g/kWh
Weight	5.8 kg 1)
Cutting circle diameter	420 mm
Standard cutting attachment	Grasschneideblatt 230-2 / Mähkopf AutoCut C 26-2
Tank capacity	710 cm³
Overall length	180 cm 2)
Sound pressure level	94 dB(A) 3)
Sound pressure level	96 dB(A) 3)
Sound power level	107 dB(A) 3)
Sound power level	104 dB(A)
Sound power level	104 dB(A)
Vibration level, left	5.5 m/s² 4)
Vibration level, right	4.5 m/s² 4)

¹⁾Without fuel, cutting tool and without protection²⁾Without cutting tool³⁾K-factor according to DIR 2006/42/EC = 2.5 dB (A)⁴⁾K-factor according to DIR 2006/42/EC = 2m / s ²