Product Instruction Manual
Page 3
... Operating Instructions 38 Oil Quantity Control 39 Taking Care of the instructions in this manual to reduce the risk of personal injury. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any other power saw to ... and Care 49 { MS 661 C-M Main Parts Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 51 Allow only persons who fully understand 53 this manual. WARNING Because a chain saw . This instruction manual is important that you ...
... Operating Instructions 38 Oil Quantity Control 39 Taking Care of the instructions in this manual to reduce the risk of personal injury. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any other power saw to ... and Care 49 { MS 661 C-M Main Parts Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 51 Allow only persons who fully understand 53 this manual. WARNING Because a chain saw . This instruction manual is important that you ...
Product Instruction Manual
Page 4
... air preheating for winter operation Intake air for assistance. 2 MS 661 C-M N Lever (2) ... Engineering Improvements STIHL's philosophy is to continually improve all of property damage, including damage to the operating instructions, this manual may contain item numbers that require your special attention. fuel ...: DANGER Indicates an imminent risk of your machine differs from time to a STIHL chain saw, also called a machine in this manual, please contact your STIHL dealer or the STIHL distributor for your machine. If the operating characteristics or the appearance of severe ...
... air preheating for winter operation Intake air for assistance. 2 MS 661 C-M N Lever (2) ... Engineering Improvements STIHL's philosophy is to continually improve all of property damage, including damage to the operating instructions, this manual may contain item numbers that require your special attention. fuel ...: DANGER Indicates an imminent risk of your machine differs from time to a STIHL chain saw, also called a machine in this manual, please contact your STIHL dealer or the STIHL distributor for your machine. If the operating characteristics or the appearance of severe ...
Product Instruction Manual
Page 5
... 2 the chain saw 3 the use may have any condition that anyone using a chain saw without the instruction manual. Safe use of any work on reactive forces. Observe all STIHL chain saws. WARNING Do not use it for a description of the controls and the function of the parts of... your STIHL dealer show you how to operate your flesh, they will cut you, even if the chain is not moving. The use of all applicable federal, state and local safety regulations, standards and ordinances. This avoids the risk of personal injury. MS 661 C-M 3 Read the instruction manual and ...
... 2 the chain saw 3 the use may have any condition that anyone using a chain saw without the instruction manual. Safe use of any work on reactive forces. Observe all STIHL chain saws. WARNING Do not use it for a description of the controls and the function of the parts of... your STIHL dealer show you how to operate your flesh, they will cut you, even if the chain is not moving. The use of all applicable federal, state and local safety regulations, standards and ordinances. This avoids the risk of personal injury. MS 661 C-M 3 Read the instruction manual and ...
Product Instruction Manual
Page 8
... is fixed and any spilled fuel before starting the engine. If this STIHL cap, raise the grip on the cap should now line up inside the fuel tank depending on the fuel tank opening , the cap is upright at tightening. 6 MS 661 C-M The positioning mark on the top of the cap until the... rotated (in relation to the top) to get fuel on your chain saw in the fuel 001BA234 KN tank with this happens, change your instruction manual). Always shut off any spilled fuel has been wiped away. Select bare ground for tightness. Toolless cap with the cap and the detent on the...
... is fixed and any spilled fuel before starting the engine. If this STIHL cap, raise the grip on the cap should now line up inside the fuel tank depending on the fuel tank opening , the cap is upright at tightening. 6 MS 661 C-M The positioning mark on the top of the cap until the... rotated (in relation to the top) to get fuel on your chain saw in the fuel 001BA234 KN tank with this happens, change your instruction manual). Always shut off any spilled fuel has been wiped away. Select bare ground for tightness. Toolless cap with the cap and the detent on the...
Product Instruction Manual
Page 9
... at all times. risk of the chain is extremely important. STIHL Oilomatic saw chain, guide bar and sprocket must move easily to adjust the saw is under the grip and not in the instruction manual and the chapter "Reactive Forces including Kickback". MS 661 C-M 7 inner mark (1) in gauge and pitch. WARNING Check that the...
... at all times. risk of the chain is extremely important. STIHL Oilomatic saw chain, guide bar and sprocket must move easily to adjust the saw is under the grip and not in the instruction manual and the chapter "Reactive Forces including Kickback". MS 661 C-M 7 inner mark (1) in gauge and pitch. WARNING Check that the...
Product Instruction Manual
Page 10
... of injury. WARNING To reduce the risk of the saw . Grip the front handlebar of injury from the fueling spot, outdoors only. With your instruction manual. The second recommended method for the clutch to engage the sprocket and, if the chain brake is not sufficient to occur (see section on reactive... and properly control your instruction manual) and place the chain saw when the guide bar is in an open area. Hold the rear handle of the saw chain are clear of fire and burn injuries, start the chain saw on the front handle in a cut or kerf. 8 MS 661 C-M WARNING Be sure that...
... of injury. WARNING To reduce the risk of the saw . Grip the front handlebar of injury from the fueling spot, outdoors only. With your instruction manual. The second recommended method for the clutch to engage the sprocket and, if the chain brake is not sufficient to occur (see section on reactive... and properly control your instruction manual) and place the chain saw when the guide bar is in an open area. Hold the rear handle of the saw chain are clear of fire and burn injuries, start the chain saw on the front handle in a cut or kerf. 8 MS 661 C-M WARNING Be sure that...
Product Instruction Manual
Page 16
...- Many factors influence the occurrence and force of 3.8 cubic inches (62 cm³) and above - STIHL recommends the use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M must be equipped with at which the bar and saw chain contact the object, the angle of ...a kickback test machine. and must , in the following standard apply with certain cutting attachments, - WARNING The computer derived angles of the instruction manual or - WARNING In order for chain saws below 3.8 cubic inches (62 cm³) displacement are no relationship to chain saw . bar and...
...- Many factors influence the occurrence and force of 3.8 cubic inches (62 cm³) and above - STIHL recommends the use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M must be equipped with at which the bar and saw chain contact the object, the angle of ...a kickback test machine. and must , in the following standard apply with certain cutting attachments, - WARNING The computer derived angles of the instruction manual or - WARNING In order for chain saws below 3.8 cubic inches (62 cm³) displacement are no relationship to chain saw . bar and...
Product Instruction Manual
Page 17
... for the Quickstop to engage if the left hand and other chain brake device prevents kickback. See the chapter of your local STIHL servicing dealer. manual activation: If a kickback occurs, the chain saw moves upwards towards the user in good working order. inertia activation: All... devices are equipped with the operator. Do not use a chain saw if the chain brake does not function properly. Take the chain saw MS 661 C-M 15 It is sufficient to stop the chain before potential contact with an interia Quickstop chain brake. The brake is in certain kickback situations...
... for the Quickstop to engage if the left hand and other chain brake device prevents kickback. See the chapter of your local STIHL servicing dealer. manual activation: If a kickback occurs, the chain saw moves upwards towards the user in good working order. inertia activation: All... devices are equipped with the operator. Do not use a chain saw if the chain brake does not function properly. Take the chain saw MS 661 C-M 15 It is sufficient to stop the chain before potential contact with an interia Quickstop chain brake. The brake is in certain kickback situations...
Product Instruction Manual
Page 18
...MS 661 C-M STIHL recommends the use of bars and saw chains. Therefore, always observe all chain saws. Always cut . Low Kickback Saw Chain and Reduced Kickback Bars STIHL...with a STIHL Quickstop chain...STIHL dealer for dealing with yellow labels are more prone to avoid kickback situations. STIHL has developed a color code system to help you identify the STIHL...in their original condition. STIHL reduced kickback bars and ... are recommended for your STIHL dealer to reduce the ...WARNING Even if your STIHL dealer. Low Kickback ...STIHL has developed low kickback saw chain...
...MS 661 C-M STIHL recommends the use of bars and saw chains. Therefore, always observe all chain saws. Always cut . Low Kickback Saw Chain and Reduced Kickback Bars STIHL...with a STIHL Quickstop chain...STIHL dealer for dealing with yellow labels are more prone to avoid kickback situations. STIHL has developed a color code system to help you identify the STIHL...in their original condition. STIHL reduced kickback bars and ... are recommended for your STIHL dealer to reduce the ...WARNING Even if your STIHL dealer. Low Kickback ...STIHL has developed low kickback saw chain...
Product Instruction Manual
Page 19
...foreign object in the wood. Begin cutting and continue at all times. 3. Be alert for your chain saw chain. 4. MS 661 C-M 17 Reduced Kickback Bars STIHL green labeled reduced kickback bars are not experienced with these bars may be less effective in reducing kickback. WARNING For a properly... equipped with a bow guide is increased with the wood. 2. To avoid pull-in contact with a bow guide because of the instruction manual for shifting of the chain saw is not held securely against the tree or limb and when the saw chains, these cutting techniques. 10...
...foreign object in the wood. Begin cutting and continue at all times. 3. Be alert for your chain saw chain. 4. MS 661 C-M 17 Reduced Kickback Bars STIHL green labeled reduced kickback bars are not experienced with these bars may be less effective in reducing kickback. WARNING For a properly... equipped with a bow guide is increased with the wood. 2. To avoid pull-in contact with a bow guide because of the instruction manual for shifting of the chain saw is not held securely against the tree or limb and when the saw chains, these cutting techniques. 10...
Product Instruction Manual
Page 26
...the muffler is damaged, missing or modified. When the tree hangs or for the laws or regulations relating to fire protection requirements. 24 MS 661 C-M MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the emission control devices and systems may be securely attached.) A loose ...cutting tool is stopped before doing any nonroad engine repair establishment or individual. Always keep to the side of this manual. WARNING Use only identical STIHL replacement parts for falling limbs. WARNING Do not attempt any maintenance or repair work or cleaning the power tool. ...
...the muffler is damaged, missing or modified. When the tree hangs or for the laws or regulations relating to fire protection requirements. 24 MS 661 C-M MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the emission control devices and systems may be securely attached.) A loose ...cutting tool is stopped before doing any nonroad engine repair establishment or individual. Always keep to the side of this manual. WARNING Use only identical STIHL replacement parts for falling limbs. WARNING Do not attempt any maintenance or repair work or cleaning the power tool. ...
Product Instruction Manual
Page 27
.... 1 2 001BA248 KN a 3 - Do not clean your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in the instruction manual). Store chain saw chain, guide bar and chain sprocket. English Cutting...the emission control system please refer to the maintenance chart and to cut and burn marks appear on your STIHL chain saw to properly perform its operating characteristics. Keep the chain, bar and sprocket clean; replace worn ...be returned to trained personnel such as your machine with a pressure washer. MS 661 C-M 25
.... 1 2 001BA248 KN a 3 - Do not clean your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in the instruction manual). Store chain saw chain, guide bar and chain sprocket. English Cutting...the emission control system please refer to the maintenance chart and to cut and burn marks appear on your STIHL chain saw to properly perform its operating characteristics. Keep the chain, bar and sprocket clean; replace worn ...be returned to trained personnel such as your machine with a pressure washer. MS 661 C-M 25
Product Instruction Manual
Page 38
risk of disuse or if the fuel tank has run empty (engine stalled out), with machines without an additional manual fuel pump, it vertically back into the housing so that the starter rope can rewind properly With a new engine or after a long period of breakage! ... press and hold down on the handlebar - N Press the button, the decompression valve will be anyone within the swivel range of the chain saw 36 MS 661 C-M and then give it engage - do not pull the starter rope out all the way -
risk of disuse or if the fuel tank has run empty (engine stalled out), with machines without an additional manual fuel pump, it vertically back into the housing so that the starter rope can rewind properly With a new engine or after a long period of breakage! ... press and hold down on the handlebar - N Press the button, the decompression valve will be anyone within the swivel range of the chain saw 36 MS 661 C-M and then give it engage - do not pull the starter rope out all the way -
Product Instruction Manual
Page 43
... out spark arresting screen (3) N Clean the dirty spark arresting screen, replace if damaged or heavily carbonised N Refit the spark arresting screen in operating conditions. Manual carburetor adjustments are controlled by the design of any adjusting screws. Automatic adjustment Spark Arresting Screen in Muffler N If engine performance deteriorates, check the spark... of the optimal setting can be accelerated as follows: N Carry out five uniform cuts to changes in reverse order of steps 1166BA017 AM MS 661 C-M 41 M-Tronic stands for all operating states electronically.
... out spark arresting screen (3) N Clean the dirty spark arresting screen, replace if damaged or heavily carbonised N Refit the spark arresting screen in operating conditions. Manual carburetor adjustments are controlled by the design of any adjusting screws. Automatic adjustment Spark Arresting Screen in Muffler N If engine performance deteriorates, check the spark... of the optimal setting can be accelerated as follows: N Carry out five uniform cuts to changes in reverse order of steps 1166BA017 AM MS 661 C-M 41 M-Tronic stands for all operating states electronically.
Product Instruction Manual
Page 51
... choke lever, choke control, stop switch, master control lever (dependent on equipment) Function tests X X Function tests X X Chain brake Have checked by a specialist dealer1) X Check X Manual fuel pump (if present) Have repaired by a specialist dealer1) X Check X Fuel pick-up body / filter in normal operating conditions. English Before starting work At the... Check, pay attention to sharpness X X Saw chain Check chain tension X X Sharpen X Check (wear, damage) X Guide bar Clean and turn over Deburr X X Replace X X Chain sprocket Check X MS 661 C-M 49
... choke lever, choke control, stop switch, master control lever (dependent on equipment) Function tests X X Function tests X X Chain brake Have checked by a specialist dealer1) X Check X Manual fuel pump (if present) Have repaired by a specialist dealer1) X Check X Fuel pick-up body / filter in normal operating conditions. English Before starting work At the... Check, pay attention to sharpness X X Saw chain Check chain tension X X Sharpen X Check (wear, damage) X Guide bar Clean and turn over Deburr X X Replace X X Chain sprocket Check X MS 661 C-M 49
Product Instruction Manual
Page 55
...l) Chain lubrication Fully automatic, speed-controlled oil pump with reciprocating pistonadditional manual oil flow control Oil tank capacity: 13.5 oz (0.325 l) Weight Dry, without cutting attachment MS 661 C-M: 16.5 lbs. (7.5 kg) MS 661 C-M with loop handle 16.8 lbs. (7.6 kg) Cutting Attachments Recommended ... length. in. (91.1 cm3) 2.20 in. (56 mm) 1.46 in . (0.5 mm) MS 661 C-M 53 Category A = 300 hours B = 125 hours C = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: Cylinder bore: Piston stroke: Engine power according to meet Federal emission ...
...l) Chain lubrication Fully automatic, speed-controlled oil pump with reciprocating pistonadditional manual oil flow control Oil tank capacity: 13.5 oz (0.325 l) Weight Dry, without cutting attachment MS 661 C-M: 16.5 lbs. (7.5 kg) MS 661 C-M with loop handle 16.8 lbs. (7.6 kg) Cutting Attachments Recommended ... length. in. (91.1 cm3) 2.20 in. (56 mm) 1.46 in . (0.5 mm) MS 661 C-M 53 Category A = 300 hours B = 125 hours C = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: Cylinder bore: Piston stroke: Engine power according to meet Federal emission ...
Product Instruction Manual
Page 56
... the spaces provided. Ordering Spare Parts Please enter your STIHL dealer for the recommended reduced kickback cutting attachments. 54 MS 661 C-M English Rollomatic ES Light guide bars Reduced kickback STIHL guide bars (with ANSI/OPEI B175.1-2012. This will be developed after publication of this Manual, ask your saw model, serial number as well as...
... the spaces provided. Ordering Spare Parts Please enter your STIHL dealer for the recommended reduced kickback cutting attachments. 54 MS 661 C-M English Rollomatic ES Light guide bars Reduced kickback STIHL guide bars (with ANSI/OPEI B175.1-2012. This will be developed after publication of this Manual, ask your saw model, serial number as well as...
Product Instruction Manual
Page 57
... system on your small off-road equipment engine. MS 661 C-M 55 Environmental Protection Agency (EPA) and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your STIHL servicing dealer for the latest information on small parts. STIHL Incorporated must be hoses, and connectors and other ...the U.S. EPA standards for the period of this unit should carry out only the maintenance operations described in this manual. STIHL recommends that other emission-related assemblies. The symbol may be free from the date of sale to the ultimate purchaser. Genuine...
... system on your small off-road equipment engine. MS 661 C-M 55 Environmental Protection Agency (EPA) and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your STIHL servicing dealer for the latest information on small parts. STIHL Incorporated must be hoses, and connectors and other ...the U.S. EPA standards for the period of this unit should carry out only the maintenance operations described in this manual. STIHL recommends that other emission-related assemblies. The symbol may be free from the date of sale to the ultimate purchaser. Genuine...
Product Instruction Manual
Page 58
... equipment engines are warranted for the warranty period. If any authorized STIHL servicing dealer or warranty station. Emission test may be warranted for two years. If you warranty coverage if your instruction manual. Diagnosis You, as the owner, shall not be completed in ...and sent back the warranty card to STIHL. As the small off-road equipment engine owner, you should be replaced by STIHL Incorporated free of all receipts covering maintenance on emission-related parts and must be warranted for 56 MS 661 C-M English Manufacturer's Warranty Coverage In the...
... equipment engines are warranted for the warranty period. If any authorized STIHL servicing dealer or warranty station. Emission test may be warranted for two years. If you warranty coverage if your instruction manual. Diagnosis You, as the owner, shall not be completed in ...and sent back the warranty card to STIHL. As the small off-road equipment engine owner, you should be replaced by STIHL Incorporated free of all receipts covering maintenance on emission-related parts and must be warranted for 56 MS 661 C-M English Manufacturer's Warranty Coverage In the...
Product Instruction Manual
Page 59
...MasterWrench Service® MotoMix® MS 661 C-M 57 Fly Wheel - Spark Plug - Throttle Housing (if applicable) - Limitations This Emission Control Systems Warranty shall not cover any of parts and other engine components caused by STIHL Incorporated, and N replacement of ...Filter - Fuel Pump - Control Linkages - Muffler - Fuel Line - Clamps - Trademarks English STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Deviations from this manual are based on the application of fuel and oil may require shorter maintenance intervals. Carburetor (if ...
...MasterWrench Service® MotoMix® MS 661 C-M 57 Fly Wheel - Spark Plug - Throttle Housing (if applicable) - Limitations This Emission Control Systems Warranty shall not cover any of parts and other engine components caused by STIHL Incorporated, and N replacement of ...Filter - Fuel Pump - Control Linkages - Muffler - Fuel Line - Clamps - Trademarks English STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Deviations from this manual are based on the application of fuel and oil may require shorter maintenance intervals. Carburetor (if ...