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ID # 18308673

Stihl MS 391 18"

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Overview

Top of the range, high torque chain saw for rugged farm use

The MS 391 chain saw features a stratified charge engine that reduces fuel consumption and emissions, while providing significantly more power than others in its class. Combined with an exclusive long-life air filtration system, advanced anti-vibration system, toolless fuel and oil caps with retainers and a side-access chain tensioner, this is an environmentally conscious pick for mid-range users.

Specifications

Model

MS 391

Year

2022

Sale Type

New

Manufacturer

Stihl

Chain

33RS60E (16") / 33RS66E (18") / 33RS72E (20") / 33RS84E (24")

Displacement (cc)

64.1

Power Output (kW)

3.3

Weight (kg / Lbs)

6.4 / 14.1

Fuel Capacity (oz)

20.3

Chain Oil Capacity (oz)

11.8

Guide Bar Lengths (Recommended Ranges)

16" - 24"

features

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.

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.

Tool free fuel caps

Special caps to open and close the tank cap quickly, easily and without tools.

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.

STIHL Easy2Start (E)

A genuine advance in easy starting. STIHL Easy2Start (E) cuts the effort required to start the tool by half, while the starter cord can be pulled at just one third of the normal force. All it takes is 2 fingers and a gentle pull action.

Side-mounted chain tensioning

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