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The MS 171 is part of STIHL’s new generation of fuel-efficient, low emission chain saws. It features a stratified charge engine, modern construction technology, a long-life air filter system, anti-vibration system, side-access chain tensioner and toolless translucent oil caps with retainers. This saw is the smart choice for homeowners needing to cut firewood, fell small trees or perform clean-up around the home, cottage or small property.
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.
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.
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 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.
Special caps to open and close the tank cap quickly, easily and without tools.
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.
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.
All important functions such as start, choke, throttle and stop are operated via a single lever.
|Weight (kg / lbs)||4.3 / 9.5|
|Guide Bar Lengths (Recommended ranges)||14" - 16"|
|Chain Oil Capacity (oz)||6.1|
|Fuel Capacity (oz)||9.5|
|Chain||61PMM350E (14") / 61PMM355E (16")|
|Power Output (kW)||1.3|