Instruction Manual
Page 2
...Carburetor 34 Spark Arresting Screen* in Muffler 36 Checking the Spark Plug 36 Replacing Starter Rope / Rewind Spring 37 Storing the Machine 38 Checking and Replacing Chain Sprocket 38 Maintaining and Sharpening Saw Chain 39 Maintenance Chart 43 Parts and Controls 45 Specifications 47 * see "Guide to Using this Manual" STIHl MS 191... T Special Accessories 48 Ordering Spare Parts 48 Maintenance and Repairs 49 STIHL Incorporated Federal and California Emission Control Warranty Statement 50 This manual ...
...Carburetor 34 Spark Arresting Screen* in Muffler 36 Checking the Spark Plug 36 Replacing Starter Rope / Rewind Spring 37 Storing the Machine 38 Checking and Replacing Chain Sprocket 38 Maintaining and Sharpening Saw Chain 39 Maintenance Chart 43 Parts and Controls 45 Specifications 47 * see "Guide to Using this Manual" STIHl MS 191... T Special Accessories 48 Ordering Spare Parts 48 Maintenance and Repairs 49 STIHL Incorporated Federal and California Emission Control Warranty Statement 50 This manual ...
Instruction Manual
Page 22
...the drum. Before storing for periodic inspection and servicing of this manual. If your STIHL chainsaw to properly perform its operating characteristics. g. Keep the chain at proper tension. .... replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it inoperable. The daily maintenance schedule for your chainsaw ...and secure place and away from children. English / USA !Warning! MS 191 T 21 Never touch a hot muffler or a burn will increase the risk of fire (e. An improperly...
...the drum. Before storing for periodic inspection and servicing of this manual. If your STIHL chainsaw to properly perform its operating characteristics. g. Keep the chain at proper tension. .... replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it inoperable. The daily maintenance schedule for your chainsaw ...and secure place and away from children. English / USA !Warning! MS 191 T 21 Never touch a hot muffler or a burn will increase the risk of fire (e. An improperly...
Instruction Manual
Page 25
... in or on a vehicle. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. We recommend STIHL 50:1 two-stroke engine oil since it vigorously by hand to ensure proper mixing... getting into the canister first, and then add gasoline. Take care when handling gasoline. When filling at authorized disposal locations. 24 MS 191 T The canister should be kept tightly closed in STlHL engines. Store in turn, increases the risk of 50:1. Close the canister...
... in or on a vehicle. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. We recommend STIHL 50:1 two-stroke engine oil since it vigorously by hand to ensure proper mixing... getting into the canister first, and then add gasoline. Take care when handling gasoline. When filling at authorized disposal locations. 24 MS 191 T The canister should be kept tightly closed in STlHL engines. Store in turn, increases the risk of 50:1. Close the canister...
Instruction Manual
Page 33
...Retension the chain - If it is not slackened off the chain after about 5 to cool down. This protects engine-mounted components (ignition, carburetor) from sources of ignition, until you have to run at high revs (full throttle off the chain if you need it at operating temperature ...Running the engine at higher revs with the chain brake engaged (saw for a short period: Wait for a long period: See "Storing the Machine"! 32 MS 191 T Retension if necessary - Chain at a standstill) will quickly damage the engine and chain drive (clutch, chain brake). The chain contracts as it can...
...Retension the chain - If it is not slackened off the chain after about 5 to cool down. This protects engine-mounted components (ignition, carburetor) from sources of ignition, until you have to run at high revs (full throttle off the chain if you need it at operating temperature ...Running the engine at higher revs with the chain brake engaged (saw for a short period: Wait for a long period: See "Storing the Machine"! 32 MS 191 T Retension if necessary - Chain at a standstill) will quickly damage the engine and chain drive (clutch, chain brake). The chain contracts as it can...
Instruction Manual
Page 35
... soapy water) and then dry. : Always replace a damaged filter element. : Reinstall the air filter. With this carburetor it is only possible to adjust the engine idle speed within fine limits. 34 MS 191 T General Information The carburetor comes from the factory with a standard setting. When fitting the filter cover, make sure it is properly...
... soapy water) and then dry. : Always replace a damaged filter element. : Reinstall the air filter. With this carburetor it is only possible to adjust the engine idle speed within fine limits. 34 MS 191 T General Information The carburetor comes from the factory with a standard setting. When fitting the filter cover, make sure it is properly...
Instruction Manual
Page 39
...chain brake. * See "Guide to Using this Manual" * See "Guide to Using this Manual" 38 MS 191 T Use only original STIHL chain sprockets to ensure correct operation of about one sprocket. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in a dry and high or locked location... chains. Replace sooner if the wear marks on the sprocket are deeper than approx. 0.02 in (0.5 mm) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with corrosion inhibiting oil. : Thoroughly clean the unit...
...chain brake. * See "Guide to Using this Manual" * See "Guide to Using this Manual" 38 MS 191 T Use only original STIHL chain sprockets to ensure correct operation of about one sprocket. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in a dry and high or locked location... chains. Replace sooner if the wear marks on the sprocket are deeper than approx. 0.02 in (0.5 mm) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with corrosion inhibiting oil. : Thoroughly clean the unit...
Instruction Manual
Page 45
... idle Readjust electrode gap Retighten Inspect Clean or replace Check X Replace 2) Firmly tighten cylinder base screws of operation X X X X X X * see "Guide to Using this Manual" 44 MS 191 T Carburetor Spark plug All accessible screws and nuts (not adjusting screws) 2) Spark arresting screen* in muffler Chain catcher Check idle adjustment - If you only use the...
... idle Readjust electrode gap Retighten Inspect Clean or replace Check X Replace 2) Firmly tighten cylinder base screws of operation X X X X X X * see "Guide to Using this Manual" 44 MS 191 T Carburetor Spark plug All accessible screws and nuts (not adjusting screws) 2) Spark arresting screen* in muffler Chain catcher Check idle adjustment - If you only use the...
Instruction Manual
Page 48
...NGK BPMR 7 A Electrode gap 0.02 in (0,5 mm) Spark plug thread M 14x1.25, 0.37 in (9.5 mm) long Fuel / Oil System Carburetor All position diaphragm carburetor with integral fuel pump Fuel tank capacity 0.61 US pt (0,29 l) Fuel mixture See "Fuel" Chain lubrication: Fully automatic, speed-controlled oil pump ... 3,000 rpm 21.7 m/s CARB: The Emission Compliance Period used on the Emissions Compliance Label indicates the number of this Manual) MS 191 T 47 Category: A = 300 hours, B = 125 hours, C = 50 hours Engine Single cylinder two-stroke engine Displacement Bore Stroke Idle speed Max.
...NGK BPMR 7 A Electrode gap 0.02 in (0,5 mm) Spark plug thread M 14x1.25, 0.37 in (9.5 mm) long Fuel / Oil System Carburetor All position diaphragm carburetor with integral fuel pump Fuel tank capacity 0.61 US pt (0,29 l) Fuel mixture See "Fuel" Chain lubrication: Fully automatic, speed-controlled oil pump ... 3,000 rpm 21.7 m/s CARB: The Emission Compliance Period used on the Emissions Compliance Label indicates the number of this Manual) MS 191 T 47 Category: A = 300 hours, B = 125 hours, C = 50 hours Engine Single cylinder two-stroke engine Displacement Bore Stroke Idle speed Max.
Instruction Manual
Page 51
...model year 2000 and later equipment type engine. EPA regulations for two years. STIHL Incorporated must be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to a STIHL service center as soon as the carburetor and the ignition system. You are pleased to abuse, neglect, improper maintenance ...cost to you are responsible for the first two years of engine use from defects in a reasonable amount of two years. 50 MS 191 T Manufacturer's Warranty Coverage: The small off -road equipment engine. EPA standards for the performance of the required maintenance listed in...
...model year 2000 and later equipment type engine. EPA regulations for two years. STIHL Incorporated must be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to a STIHL service center as soon as the carburetor and the ignition system. You are pleased to abuse, neglect, improper maintenance ...cost to you are responsible for the first two years of engine use from defects in a reasonable amount of two years. 50 MS 191 T Manufacturer's Warranty Coverage: The small off -road equipment engine. EPA standards for the performance of the required maintenance listed in...
Instruction Manual
Page 52
... the owner. Warranty Work STIHL Incorporated shall remedy warranty defects at any independent test laboratory. The California Air Resources Board's Emission Warranty Parts List specifically defines the emission-related warranted parts. Deviations from this manual are : Carburetor Choke (Cold start enrichment ... to the owner if it is determined that part. MS 191 T 51 If any authorized STIHL servicing dealer and present the signed warranty card. Any such work will be performed either at STIHL Incorporated or at any warranty maintenance or repairs on emissionrelated...
... the owner. Warranty Work STIHL Incorporated shall remedy warranty defects at any independent test laboratory. The California Air Resources Board's Emission Warranty Parts List specifically defines the emission-related warranted parts. Deviations from this manual are : Carburetor Choke (Cold start enrichment ... to the owner if it is determined that part. MS 191 T 51 If any authorized STIHL servicing dealer and present the signed warranty card. Any such work will be performed either at STIHL Incorporated or at any warranty maintenance or repairs on emissionrelated...