Instruction Manual
Page 3
... Starting / Stopping the Engine 34 Operating Instructions 38 Taking Care of the Guide Bar 39 Shroud 40 Air Filter System 40 Cleaning the Air Filter 40 Engine Management 41 Adjusting the Carburetor 41 Spark Arresting Screen in this manual to operate your chain ... Maintaining and Sharpening the Saw Chain 46 Maintenance and Care 50 Main Parts 52 { MS 271, MS 271 C, MS 291, MS 291 C Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 54 Allow only persons who fully understand 55 ...
... Starting / Stopping the Engine 34 Operating Instructions 38 Taking Care of the Guide Bar 39 Shroud 40 Air Filter System 40 Cleaning the Air Filter 40 Engine Management 41 Adjusting the Carburetor 41 Spark Arresting Screen in this manual to operate your chain ... Maintaining and Sharpening the Saw Chain 46 Maintenance and Care 50 Main Parts 52 { MS 271, MS 271 C, MS 291, MS 291 C Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 54 Allow only persons who fully understand 55 ...
Instruction Manual
Page 36
... at increased idle speed (disengage chain brake!) Air filter system N Retrofit new air filter if necessary - If the fuel tank was run position (F) when you open the throttle after clearing a flooded combustion chamber. 34 MS 271, MS 271 C, MS 291, MS 291 C the ignition is set the Master ... the throttle trigger at the same time. At temperatures above +70 °F (+20 °C) N Ensure that position - see "Air filter system" Starting / Stopping the Engine Positions of erratic idling behavior or poor acceleration N Turn the low speed screw (L) 1/4 turn counterclockwise...
... at increased idle speed (disengage chain brake!) Air filter system N Retrofit new air filter if necessary - If the fuel tank was run position (F) when you open the throttle after clearing a flooded combustion chamber. 34 MS 271, MS 271 C, MS 291, MS 291 C the ignition is set the Master ... the throttle trigger at the same time. At temperatures above +70 °F (+20 °C) N Ensure that position - see "Air filter system" Starting / Stopping the Engine Positions of erratic idling behavior or poor acceleration N Turn the low speed screw (L) 1/4 turn counterclockwise...
Instruction Manual
Page 42
... Do not use tools to a thorough cleaning. 2710BA000 KN 40 MS 271, MS 271 C, MS 291, MS 291 C Fleece filter N Fleece filter for extreme wintry conditions (e.g. Changing the filter is a noticeable loss of stubborn dirt or stuck filter fabric, the filter must be subjected to remove and install the air filter - the air filter could be adapted to the stop position 0 N Push the front hand...
... Do not use tools to a thorough cleaning. 2710BA000 KN 40 MS 271, MS 271 C, MS 291, MS 291 C Fleece filter N Fleece filter for extreme wintry conditions (e.g. Changing the filter is a noticeable loss of stubborn dirt or stuck filter fabric, the filter must be subjected to remove and install the air filter - the air filter could be adapted to the stop position 0 N Push the front hand...
Instruction Manual
Page 43
... turn counterclockwise MS 271, MS 271 C, MS 291, MS 291 C 41 see "Shroud" HL N Turn the high speed adjusting screw (H) counterclockwise as far as possible - do not expose to out under a water jet - English Adjusting the Carburetor Basic information The carburetor comes from inside to extreme heat N Do not oil the filter N Reinstall filter Installing the air filter 1. 2. clean or...
... turn counterclockwise MS 271, MS 271 C, MS 291, MS 291 C 41 see "Shroud" HL N Turn the high speed adjusting screw (H) counterclockwise as far as possible - do not expose to out under a water jet - English Adjusting the Carburetor Basic information The carburetor comes from inside to extreme heat N Do not oil the filter N Reinstall filter Installing the air filter 1. 2. clean or...
Instruction Manual
Page 45
... etc.) affect the condition of fire and burn injury, use only spark plugs authorized by STIHL. operating at idling speed, first check the spark plug. N Check electrode gap (A) and... dirt from around the spark plug. 5902BA013 KN A N Clean dirty spark plug. see "Shroud". dirty air filter, - Checking the Spark Plug N Remove the shroud - N Use only resistor type spark plugs of spark... ignition wire connector in the boot may result in trouble in the gasoline), a dirty air filter and unfavorable running conditions, e.g. N Push the combination fully home against the cylinder. too...
... etc.) affect the condition of fire and burn injury, use only spark plugs authorized by STIHL. operating at idling speed, first check the spark plug. N Check electrode gap (A) and... dirt from around the spark plug. 5902BA013 KN A N Clean dirty spark plug. see "Shroud". dirty air filter, - Checking the Spark Plug N Remove the shroud - N Use only resistor type spark plugs of spark... ignition wire connector in the boot may result in trouble in the gasoline), a dirty air filter and unfavorable running conditions, e.g. N Push the combination fully home against the cylinder. too...
Instruction Manual
Page 46
... fill the chain oil tank. Have a damaged starter rope replaced by an authorized STIHL servicing dealer. N Do not pull the rope over the edge of children and other unauthorized persons. 44 MS 271, MS 271 C, MS 291, MS 291 C STIHL recommends that you use a biological chain and bar lubricant, e.g. N If you have...plug through the grommet and screw it back into the housing slowly - N Do not allow the starter grip to the cylinder fins and air filter. see "Shroud". 5902BA016 KN To help prolong the wear life of the starter rope, observe the following points: N Pull the starter...
... fill the chain oil tank. Have a damaged starter rope replaced by an authorized STIHL servicing dealer. N Do not pull the rope over the edge of children and other unauthorized persons. 44 MS 271, MS 271 C, MS 291, MS 291 C STIHL recommends that you use a biological chain and bar lubricant, e.g. N If you have...plug through the grommet and screw it back into the housing slowly - N Do not allow the starter grip to the cylinder fins and air filter. see "Shroud". 5902BA016 KN To help prolong the wear life of the starter rope, observe the following points: N Pull the starter...
Instruction Manual
Page 52
...brake Manual fuel pump (if present) Fuel pick-up body / filter in fuel tank Fuel tank Lubricating oil tank Chain lubrication Saw chain Guide bar Chain sprocket Air filter Visual inspection (condition, leaks) Clean Function tests Function tests Have ...Check Clean, replace filter insert Replace Clean Clean Check Check, pay attention to sharpness Check chain tension Sharpen Check (wear, damage) Clean and turn over Deburr Replace Check Clean Replace 50 X X X X X X X X X X X X X X XX X X X X X X X X X X X XX X X X X MS 271, MS 271 C, MS 291, MS 291 C English ...
...brake Manual fuel pump (if present) Fuel pick-up body / filter in fuel tank Fuel tank Lubricating oil tank Chain lubrication Saw chain Guide bar Chain sprocket Air filter Visual inspection (condition, leaks) Clean Function tests Function tests Have ...Check Clean, replace filter insert Replace Clean Clean Check Check, pay attention to sharpness Check chain tension Sharpen Check (wear, damage) Clean and turn over Deburr Replace Check Clean Replace 50 X X X X X X X X X X X X X X XX X X X X X X X X X X X XX X X X X MS 271, MS 271 C, MS 291, MS 291 C English ...
Instruction Manual
Page 59
..., STIHL Incorporated will be warranted for that part. The following list specifically defines the emission-related warranted parts: - Choke (Cold Start Enrichment System) (if applicable) - Fly Wheel - Clamps - Control Linkages - Fuel Cap - Fasteners MS 271, MS 271 C, MS 291, MS 291...still under warranty. Fuel Tank - Fuel Line Fittings - STIHL Incorporated also warrants to meet all applicable regulations. STIHL Incorporated is defective, the part will charge you can write to exceed 30 days. Air Filter - Cylinder - Muffler - Catalytic Converter (if applicable)...
..., STIHL Incorporated will be warranted for that part. The following list specifically defines the emission-related warranted parts: - Choke (Cold Start Enrichment System) (if applicable) - Fly Wheel - Clamps - Control Linkages - Fuel Cap - Fasteners MS 271, MS 271 C, MS 291, MS 291...still under warranty. Fuel Tank - Fuel Line Fittings - STIHL Incorporated also warrants to meet all applicable regulations. STIHL Incorporated is defective, the part will charge you can write to exceed 30 days. Air Filter - Cylinder - Muffler - Catalytic Converter (if applicable)...