STIHL FS 91 4-MIX

The new-generation 4-MIX brushcutter is a comfortable, sturdy brushcutter with a straight shaft, a rigid drive shaft and an ergonomic two-handed handle, for working in areas with tough grass. The set includes both a trimmer head and a brush knife.

This 4-MIX-engined brushcutter is intended for large-scale trimming work in the home yard or on the farm. It is also suitable for smaller-scale brush-clearing work. The set includes a universal FS harness, a 250 mm brush knife, an AutoCut C 26-2 mowing head, a trimmer guard kit, a transport guard for the grass blade, a combination spanner and safety glasses.
Available as accessories: a saw blade with a guard kit, a Polycut 28-2 mowing head and an FS 91 service kit.

Three-tooth blade – allows cutting of grass, hay, saplings and tough weeds

Trimmer head – tapping the trimmer head against the ground while working automatically extends the trimmer line.

Saw blade (not included in the set) – suitable for clearing forest undergrowth and ditch banks with trees up to approx. 5 cm thick. Easy to sharpen with a STIHL brushcutter sharpening template.

STIHL 4-MIX®

The revolutionary STIHL 4-MIX® engine is the first four-stroke engine from STIHL lubricated by the fuel mixture, and it combines the advantages of both two-stroke and four-stroke engines. Unlike conventional four-stroke engines, which need separate systems for fuel delivery and engine lubrication, the new STIHL 4-MIX® engine uses a new 4-MIX® fuel mixture. Like all STIHL engines, the STIHL 4-MIX® engine also meets the basic requirements of STIHL engines: light, simple, reliable and strong.

Anti-vibration system – ensures less vibration to the user's hands.

STIHL trimmer lines

STIHL trimmer lines are made of polyamide plastic. This makes them more wear-resistant and more elastic, and the lines do not start to melt when heated. The range includes trimmer lines of various diameters and profiles. For every STIHL mowing head there is also a corresponding trimmer line in the STIHL trimmer line range.

Technical specifications: output 0.95 kW, displacement 28.4 cm³, weight 5.8 kg, overall length 180 cm, fuel tank capacity 0.71 l.