MS 171 A lightweight, fuel-efficient chainsaw with reduced-emission engine technology.
The STIHL® MS 171 is part of a new generation of lightweight STIHL chain saws with reduced emission technology, a significant benefit for users because it saves fuel even as it cuts exhaust emissions. The MS 171 also has the STIHL pre-separation air filter, which can extend filter life up to five times over previous models.
Additional Features
- INTELLICARB™ COMPENSATING CARBURETOR: Measures air on clean side of air filter and adjusts metering diaphragm in carburetor. Keeps RPM levels even when filter begins to clog.
- DECOMPRESSION VALVE: Makes starting easier.
- EASY2START™ SYSTEM: Reduces the strength and effort needed to start the engine. Available on select models.
- STIHL QUICKSTOP® PLUS (Q) - AN ADDITIONAL CHAIN BRAKING FEATURE: designed to activate when you completely release the rear handle. Designed to stop the chain within one second.
- PURGE PUMP PRIMER: lets you prime the carburetor without flooding it. Standard on select models.
- STIHL M-TRONIC™: Electronically optimizes the fuel mixture over the whole RPM — ensuring top performance and efficiency under varying conditions.
- ELASTOSTART™ HANDLE: Has built-in shock absorber for smoother starting.
- QUICK CHAIN ADJUSTER: A toolless chain adjuster.
- CAPTURED GUIDE BAR NUTS: Secure the guide bar and sprocket cover.
Common Features
- STIHL OILOMATIC® SAW CHAIN: STIHL makes its own saw chain.
- EMATIC™ BAR: Includes a polymer ramp reservoir which holds bar oil until it can be picked up by passing chain. This can reduce oil usage by up to 50%.
- BUMPER SPIKES: Help prevent pull-in and provide better control, making cutting easier.
- SPARK ARRESTER MUFFLER: Has large baffles which reduce noise level and contain a screen designed to reduce the emission of sparks.
- STIHL QUICKSTOP® CHAIN BRAKE SYSTEM: Designed to stop the chain in fractions of a second. Can be manually activated or activated by inertia if the kickback force is sufficient.
- FRONT HAND GUARD: Designed to reduce the risk of injury.
- FRONT HANDLE: Designed for a secure grip and ergonomically angled for comfort.
- PROTECTED SPARK PLUG: Protected, yet easy to change.
- LARGE STARTING HANDLE: Easy to grip.
- SMOOTH CLEAN DESIGN: No rough edges to snag on clothing or brush.
- AIR FILTER COVER: Easy to remove for fast and easy filter cleaning or replacement.
- MASTER CONTROL LEVER™: A single lever operating the choke, starting throttle lock and on-off switch.
- REAR HAND GUARD: Reduces the risk of injury as well as provides a wide area for foot placement during starting.
- HIGH-TECH POLYMER HOUSINGS: Lightweight, withstand greater impact and are corrosion-resistant.
- TRANSLUCENT FUEL TANK: Allows operator to easily check fuel level before starting work.
- ANTI-VIBRATION SYSTEM: Helps reduce operator fatigue.
- ELECTRONIC IGNITION: Provides easier starting and smoother running.
- REPLACEABLE "IN TANK" FUEL AND OIL FILTERS: lower cost and are easy to maintain.
- INBOARD CHAIN BRAKE: Requires less maintenance and makes saw chain sprocket easier to remove.
- AUTOMATIC BAR AND CHAIN OILER: Lets operator concentrate on cutting, not on bar lubrication.
- CHAIN CATCHER: helps reduce the risk of operator contact by a chain if it should break or derail.
- THROTTLE TRIGGER LOCKOUT: Must be depressed before the trigger can be activated.
Model Features
- BUILT IN THE USA: When you own a STIHL, you hold in your hands the product of hard work, pride and dedication.
- ANTI-VIBRATION SYSTEM: STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
- SIDE-ACCESS CHAIN TENSIONER: The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
- TOOLLESS FUEL AND OIL CAPS WITH RETAINERS: Simply lift the lever and twist the caps to remove or tighten. There‘s no need to use a tool to tighten or loosen.
- TRANSLUCENT FUEL TANK: Allows operator to easily check fuel level before starting work.
General Information
Dimensions
Weight
Powerhead - 9.5 lbs. (4.3 kg)
Engine
Horsepower
1.3 kW (1.7 bhp)
Displacement
31.8 cc (1.94 cu. in.)
Fuel Tank Capacity
9.5 oz. (280cc)
Oil Capacity
Chain - 6.1 oz. (180cc)
Operational
Chain
OILOMATIC® 3/8 in. PMM3
Guide Bars
Recommended ranges - 12 - 16 in. (30 - 40 cm)
Other
Warranty
Personal, Professional, or Household use - 1 Year
Professional Use - 3 months