Cathcart Power Equipment Authorized Servicing STIHL Dealer

MS 391

Top of the range, high torque farmer chainsaw

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.

Version Price
MS 391,Bar length 16"/40cm
£805.25 (incl. VAT)
MS 391,Bar length 20"/50cm
was £819.00 £679.00 (incl. VAT)
Promotion Ends 31/07/2018
MS 391,Bar length 18"/45cm
£809.00 (incl. VAT)

Displacement cm³ 64.1
Power output kW/bhp 3.3/4.5
Weight kg 1) 6.2
Power-to-weight ratio kg/kW 1.9
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 117
Vibration level left/right m/s² 3) 4/4
STIHL Oilomatic saw chain type 3/8" RM
Recommended bar length cm/inch 50cm/20"
  • 1) Without fuel, without bar and chain
  • 2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
  • 3) K-factor according to DIR 2006/42/EC = 2m / s ²

Standard

  • 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.
  • Advanced combustion technology
    Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.
  • Controlled-delivery oil pump
    Different bar lengths, wood types and sawing techniques require different amounts of oil. The controlled-delivery oil pump allows the user to select just the right amount of oil for the job at hand.
  • 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.
  • 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.
  • STIHL anti-vibration system
    Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.
  • STIHL Ematic System
    Compared to conventional bars without Ematic, the STIHL Ematic system reduces the consumption of chain lubricant by up to 50 %, depending on the type of wood and the cutting attachment used. This system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a variable-flow or reduced-flow oil pump. As a result, virtually every drop of chain lubricant is delivered to exactly the right spot.
  • Single-lever master control
    All important functions such as start, choke, throttle and stop are operated via a single lever.
  • Side-mounted chain tensioning
    Side-mounted chain tensioning makes it easy to tension the chain safely.
  • Tool free fuel caps
    Special caps to open and close the tank cap quickly, easily and without tools.

Optional

  • STIHL ElastoStart
    Due to compression pressure, jerky stresses occur when starting internal combustion engines. The damping element in the ElastoStart special starter grip alternately absorbs and releases force according to the compression pattern. The result is smooth, even starting.
  • Practical tool for quickly sharpening the teeth and depth gauge in a single step. Ideal for occasional users. For 1/4" P, 3/8" P, .325", 3/8" and .404" saw chains, integrated file tolerance compensation (only from STIHL).
    £44.90  Product Details (incl. VAT)
  • Semi synthetic high performance lubricant is made from high grade base oils (refined oils) which prevents resinification during prolonged downtimes. Outstanding protection against wear.
    £21.90  Product Details (incl. VAT)
  • Well established helmet set with new visor system, high noise protection and anti-dazzle peak. EN 352, EN 397, EN 1731.
    £60.00  Product Details (incl. VAT)
  • Entry level model made of high quality full grain leather, with high grip soles and breathable textile lining. Also protects against moisture, wear and abrasion. Protection according to EN 17249, protection class 1 (=^20 m/s) and EN 20345 S2.
    £154.80  Product Details (incl. VAT)
These products can be reserved online with no obligation and picked up at our store. Here we offer you personal advice and professional service. Since your safety is of particular importance for us, we provide you with extensive personal instruction for a safe handling.