Stihl MS 391 Chainsaw

Stihl MS 391 Chainsaw

Stihl MS 391 Chainsaw


£672.00£680.50 excl. VAT

£806.40 incl. VAT


Easy-to-manage, high-torque chainsaw for improved performance and user comfort when harvesting wood or sawing firewood. High torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with the previous model without 2-MIX technology.

Available with a 16″ Bar and Chain, 18″ Bar and Chain or a 20″ Bar and Chain – please select below

Full Details

Standard Features

Reduced-emission engine technology

2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20% lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.

Pre-separation air filtration system

STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

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.

Tool free filler caps

Special catches on the fuel and oil tanks for easy opening and locking without the need for tools

Compensator

This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn’t need to be cleaned until an appreciable drop in power occurs

Ematic chain lubrication system

The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.

Side chain tensioner

The tensioning screw can be found on the side of the chain saw through the sprocket cover. This removes the need for contact with the sharp saw chain.

Single-lever master control

All important functions such as start, choke, throttle and stop are operated via a single lever.

Decompression valve

The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.

Technical data

Displacement cm³64.1
Weight kg6.2
Power-to-weight ratio kg/kW1.9
Power output  kW/bhp3.3/4.5
Vibration levels left/right m/s²4/4
Sound power level dB(A)117
Sound pressure level dB(A)105.0

Please click the link below to read about chain saw safety

Chain Saw Safety Manual

Please click the link below to see the relevant Stihl videos for information on correct assembly and use of your chainsaw

https://www.youtube.com/channel/UC83FJR5XXAjl6MIwV1z06tA/featured