The MS 250 is designed to give you years of powerful and efficient performance. It’s packed with features you’ll find on more expensive saws. And like every STIHL product, the MS 250 comes with our exclusive network of over 8,000 Dealers who service what they sell.

THE STIHL MS 250. NEARLY 100 FEATURES. UNDER $300.
SEE FOR YOURSELF AT ONE OF OUR PARTICIPATING DEALERS!

ENGINE FEATURES

FEATURE BENEFIT 2 piston rings Ensures engine compression for the life of the engine creating a longer engine life. 25 cooling fins on cylinder Equivalent to those of a pro saw. Adjustable low-speed mixture screw Helps with the tuning of the chain saw, allowing for optimal performance.   MORE FEATURES 3-piece forged & machined crankshaft Forged, machined and balanced to withstand 540,000 RPMs/hour(9,000 RPMs @ 60 minutes). Air baffle Efficiently channels cooling air from the flywheel across the cylinderfor better engine cooling. Carburetor with high-speed check valve Provides efficient fuel delivery at full throttle and insures a smooth idle. Cast iron machined piston rings Like pro saws, the two piston rings are machined to a gap of .008" - .010" Cooling plate Deflects muffler heat away from cylinder. Crankshaft bearing Constructed to turn 1 million revolutions in 2 hours at 9,000 rpm. Dowel pins in ring lands Prevents the rotation of piston rings. Easy-access spark plug Makes spark plug maintenance easy – just remove the insulated high-tension lead and use the combination wrench to access the spark plug. Easy-service starter pawl Independent from the starter rope pulley, enabling easy maintenance for longer pulley life. Emmisions Standards This engine meets EPA exhaust emissions regulations for 2010. Floating wrist pin needle bearing Reduces wear on wrist pin. Forged connecting rod Like pro chain saws, the connecting rod is forged instead of stamped for a longer service life. Formed flexible intake manifold Connecting the carburetor to cylinder, the manifold is flexible to isolate it from engine vibration and the interior contains a rough surface to atomize fuel/air mixture and prevent fuel puddling. Fuel tank filter Easy to replace fuel filter with an 80-micron rating. Gear driven oil pump Pumps oil only when the chain is moving, reducing oil waste. High-impact polymer engine housing Manufactured by STIHL, the engine housing is sonically welded and pressure tested. High temperature spark plug Fires 200 times per second at 9,000 RPMs. Integral impulse-driven fuel pump Designed to limit fuel permeation into the atmosphere for fewer emissions. Integrated fuel tank Designed to limit fuel permeation into the atmosphere for fewer emissions. Isolated fuel tank Isolated from the engine so the fuel remains cool. Isolated carburetor Isolated from the engine to prevent fuel from vaporizing and to maintain proper fuel-to-air mixture. Large cooling finned flywheel Large design and 16 cooling fins help keep the engine cool. Balanced and spin tested to 22,000 RPMs. Larger cylinder A more robust cylinder with a larger cooling surface area than the MS 230. Limited high-speed mixture screw Permits altitude adjustments for peak chain saw performance. Long life fuel pump diaphragms Mylar fuel pump and woven silk-coated metering diaphragm resists fuel corrosion for a longer service life. Machine-tooled steel alloy wrist pin Ground to a tolerance of .004mm (.00015") to fasten the piston to the connecting rod. Meets ANSI standards This saw meets ANSI B175.1 standards. Needle bearings on connecting rod A large surface of needle bearing sets help carry the vertical motion load of the piston and connecting rod. Oil tank filter Filters out debris in oil tank to keep lubrication flowing. Oval-shaped barrel piston Narrower at skirt end, fitting the cylinder as it heats up. Positive sealing vent tank Reduces emissions into the air while enabling proper fuel flow. Precision-milled piston Piston and Cylinder are machined with very tight tolerances. Solid-state ignition The solid-state capacitor discharge ignition module is reliable in all weather. Staggered spaced cooling fins Staggered spacing reduces vibration and noise. UL listed This saw is listed by Underwriters Laboratory. USFS fire-safe muffler with spark arrester screen Baffled and tuned for more tolerable sound. Vented oil tank Designed to prevent oil spillage and waste while allowing the easy flow of lubricant.

CUTTING SYSTEM FEATURES

FEATURE BENEFIT .325 pitch chain Longer running life and more resistance to wear. 1 piece spur sprocket Manufactured by STIHL to be easy to maintain and replace. Bar scabbard Protects the bar and chain during storage and transport. Chamfered rivet holes A special machining process ensures smooth rivet holes with no microscopic cracks.   MORE FEATURES Chromed cutters Sharpened before assembly to stay sharp longer with less filing. Dual bar stud with 19mm hex nuts Dual bar studs and large hex bar nuts offer solid bar mounting. Easy to change bar and chain Easy to change, rotate and maintain and the bar removes from the engine easily if the saw is ever bound in a cut. Ematic™ bar Features a ramp that acts as oil reservoir so the passing chain can pick up lubricating oil, reducing oil consumption up to 50%. Flame hardened bar rails Increases the wear resistance. Hardened rivets Specially designed to withstand heavy loads and stress. Integrated chain catcher Designed to wrap the chain into the sprocket cover for protection if the chain jumps the bar. Integrated chain guides Nylon chain guides are integrated into the sprocket cover to help keep chain in bar groove. Low kickback saw chain Designated with a green link and designed to reduce kickback. Reduced kickback bar Designated with a green dot and designed to reduce kickback. Metal bumper spike 6-toothed steel bumper spike that's similar to pro chain saws. OILOMATIC® channel Specially designed to channel lubricating oil to critical chain components reducing oil volume, friction and wear. Prestretched chain Prestretched before leaving the factory to eliminate excessive chain stretching during the break-in period and also reduces maintenance time and component wear. Saw chain filing marks Stamped marks on depth gauge indicate filing angle. Saw chain wear marks Stamped marks on cutter indicate sharpening angle and minimum tooth length. Side chain adjuster On the side of sprocket and not near the muffler. Sprocket tip bar nose with 22 roller bearings Slightly lifts chain to reduce friction as the chain passes the bar nose. STIHL guide bar Designed for long service life, the bar is symmetrical and can be flipped for even bar rail wear. STIHL laminated bar Lighter than solid bar. STIHL OILOMATIC® chain Swiss-made in STIHL factories. STIHL is the only chain saw manufacturer to design and make its own chain. Tri-shoe inboard clutch Three-shoe clutch with heavy-duty springs offering maximum contact surface with sprocket.

OPERATION FEATURES

FEATURE BENEFIT 100% engine test Every engine is test started and adjusted before it leaves the factory. Anti-vibration system The anti-vibration system was invented by STIHL for handheld outdoor power equipment in 1967, starting with the 041 chain saw. Built-in felling sites Sighting lines are molded into the sprocket and starter covers at 90 degrees to the bar to help you align your felling cuts. Built in Virginia Beach, VA STIHL has a factory in Virginia Beach, VA that employs about 2,000 workers.   MORE FEATURES Combination wrench Features a screwdriver for adjusting chain and a socket that fits hex nuts and spark plug. Easy-access starter Easy to remove and service. Easy-grip ribbed front handle Lightweight and tough polymer handle is flush on one side to assist in tight cutting situations. Easy-to-remove air filter cover No tools are needed for removal. Ergonomic design Designed to be balanced and comfortable during long periods of use. Front hand guard Integrated with chain brake, the see-through hand guard helps prevent contact with brush and limbs and viewing windows allow for better viewing of the cutting area. Heavy-duty starter rope Features 3mm heavy-duty braided rope. High engine speed Engine has a wide-open throttle specification of 14,000 RPMs. High-impact polymer Withstands a variety of chemicals and impact while still remaining lightweight. High power-to-weight ratio High performance and lightweight. Inertia activated chain brake The chain brake is activated in a fraction of a second during episodes of significant kickback force. Large starter handle Easy to grip even when wearing gloves. Large surface air filter Easy to maintain and replace flocked air filter features nearly 9" of surface area. Limited warranty Covers user for defects in workmanship and is backed by your local Dealer. Manually activated chain brake Can be manually activated to quickly stop the chain between cutting jobs. Master Control Lever™ Control all engine functions from one switch, located so it is easy to turn off the engine with a flick of your thumb. One fastener type Uses T27 Torx head screws, so only one tool is needed for maintenance and for secure fastening. Product warranty registration STIHL Dealer will register the product for you. Rear hand guard Helps prevent accidental contact to user's hand if the chain breaks. Also protects from contact with brush. Retained fuel cap Built-in retainer helps prevent cap from becoming lost and preventing saw use. Retained oil cap Built-in retainer helps prevent cap from becoming lost and preventing saw use. Screwdriver Included for carburetor adjustment. STIHL Dealer STIHL sells its products only through independent servicing Dealers. Streamlined design The smooth design with no protruding edges makes it easy to move through brush and limbs. Summer/winter shutter Enables proper engine operation in different seasons. The brand name STIHL STIHL has been manufacturing chain saws since 1926. Throttle trigger Lockout Helps prevent accidental acceleration of engine. Hands must be firmly on the control handle to engage engine. Toolless fuel cap Easy on / off with half twist, no tools required. Toolless oil cap Easy on / off with half twist, no tools required. Wide rear handle Gives you room to place your foot into the handle for on-ground starting.