Product Instruction Manual
Page 3
... your STIHL chain saw to reduce the risk of the Guide Bar 36 Air Filter System 36 Remove air filter 37 Cleaning the Air Filter 37 Engine Management 38 Adjusting the Carburetor 39 Spark Arresting Screen in chapter "Safety 54 Precautions and Working Techniques" before using your area if you read, understand and follow the safety precautions and 53 the operating and maintenance 53 instructions in Muffler 40 Spark Plug 41 Replacing the Starter Rope and Rewind Spring 42...
... your STIHL chain saw to reduce the risk of the Guide Bar 36 Air Filter System 36 Remove air filter 37 Cleaning the Air Filter 37 Engine Management 38 Adjusting the Carburetor 39 Spark Arresting Screen in chapter "Safety 54 Precautions and Working Techniques" before using your area if you read, understand and follow the safety precautions and 53 the operating and maintenance 53 instructions in Muffler 40 Spark Plug 41 Replacing the Starter Rope and Rewind Spring 42...
Product Instruction Manual
Page 4
... products. Fuel tank; Example: N Loosen the screw (1). In addition to the operating instructions, this manual may contain item numbers that require your STIHL dealer for assistance. 2 MS 650, MS 660 Such paragraphs are explained in the illustration. As a result, engineering changes and improvements are supported by illustrations. The individual steps or procedures described in this manual, please contact your special attention. English Guide to Using this Manual Pictograms...
... products. Fuel tank; Example: N Loosen the screw (1). In addition to the operating instructions, this manual may contain item numbers that require your STIHL dealer for assistance. 2 MS 650, MS 660 Such paragraphs are explained in the illustration. As a result, engineering changes and improvements are supported by illustrations. The individual steps or procedures described in this manual, please contact your special attention. English Guide to Using this Manual Pictograms...
Product Instruction Manual
Page 7
... your instruction manual). the fuel system is in a horizontal position. Check in the tank to release slowly. MS 650, MS 660 5 THE USE OF THE POWER TOOL Transporting the Power Tool Warning! To reduce the risk of burns and other ignition source, it can cause fire and serious burn injury or property damage. Always shut off the engine, and fit the chain guard (scabbard) over the chain and guide bar before...
... your instruction manual). the fuel system is in a horizontal position. Check in the tank to release slowly. MS 650, MS 660 5 THE USE OF THE POWER TOOL Transporting the Power Tool Warning! To reduce the risk of burns and other ignition source, it can cause fire and serious burn injury or property damage. Always shut off the engine, and fit the chain guard (scabbard) over the chain and guide bar before...
Product Instruction Manual
Page 8
... fuel tank opening . In order to the open position for repair. 001BA227 KN 001BA226 KN 001BA220 KN To do not start or run the engine until it will go (approx. 1/4 turn) - this happens, change your cap still does not tighten properly, it normally. Fold the grip flush with the cap and the detent on your authorized STIHL dealer for installation, turn ). immediately stop use of cap...
... fuel tank opening . In order to the open position for repair. 001BA227 KN 001BA226 KN 001BA220 KN To do not start or run the engine until it will go (approx. 1/4 turn) - this happens, change your cap still does not tighten properly, it normally. Fold the grip flush with the cap and the detent on your authorized STIHL dealer for installation, turn ). immediately stop use of cap...
Product Instruction Manual
Page 9
... adjust the chain while the engine is shut off and spill quantities of injury. STIHL Oilomatic chain, guide bar and sprocket must match each other similar tool can cause an improperly tightened fuel filler cap to the idle position. For specific starting instructions, see the chapter entitled "Specifications" in tightening slotted fuel filler caps. Proper starting , particularly the throttle trigger, throttle trigger lockout, stop switch and cutting tool. Never operate your power tool for proper condition and operation. (See the maintenance...
... adjust the chain while the engine is shut off and spill quantities of injury. STIHL Oilomatic chain, guide bar and sprocket must match each other similar tool can cause an improperly tightened fuel filler cap to the idle position. For specific starting instructions, see the chapter entitled "Specifications" in tightening slotted fuel filler caps. Proper starting , particularly the throttle trigger, throttle trigger lockout, stop switch and cutting tool. Never operate your power tool for proper condition and operation. (See the maintenance...
Product Instruction Manual
Page 10
... as the engine is running cutting tool, do not wrap the starter rope around the handles. 8 MS 650, MS 660 Warning! Do not drop start the saw when the guide bar is not activated, turn the chain. When you are working. Failure to follow this risk, always engage the chain brake before starting grip slowly with incorrect idle adjustment. To reduce this procedure may damage the starter mechanism. For saws with a rear handle level with...
... as the engine is running cutting tool, do not wrap the starter rope around the handles. 8 MS 650, MS 660 Warning! Do not drop start the saw when the guide bar is not activated, turn the chain. When you are working. Failure to follow this risk, always engage the chain brake before starting grip slowly with incorrect idle adjustment. To reduce this procedure may damage the starter mechanism. For saws with a rear handle level with...
Product Instruction Manual
Page 13
... not operate a chain saw chain does not touch any combustible substances. MS 650, MS 660 11 Warning! The use could cause an increase in sets. Warning! From time to whether the antivibration elements should always be replaced, consult your STIHL servicing dealer. Warning! It is released (flywheel effect). Inspect antivibration elements periodically. Such use and disposal of asbestos-containing products have control of an emergency, switch...
... not operate a chain saw chain does not touch any combustible substances. MS 650, MS 660 11 Warning! The use could cause an increase in sets. Warning! From time to whether the antivibration elements should always be replaced, consult your STIHL servicing dealer. Warning! It is released (flywheel effect). Inspect antivibration elements periodically. Such use and disposal of asbestos-containing products have control of an emergency, switch...
Product Instruction Manual
Page 16
... kickback are sufficiently high, the hand guard is pinched or otherwise caught in excess of 3 seconds has occurred, allow the motor housing to activate and stop the chain before proceeding and check the operation of your instruction manual. Cutting attachments with a Quickstop chain brake will deactivate the chain brake. 001BA174 KN Warning! No Quickstop or other parts of ANSI B 175.1-2000 14 MS 650, MS 660 Clutch slippage can be...
... kickback are sufficiently high, the hand guard is pinched or otherwise caught in excess of 3 seconds has occurred, allow the motor housing to activate and stop the chain before proceeding and check the operation of your instruction manual. Cutting attachments with a Quickstop chain brake will deactivate the chain brake. 001BA174 KN Warning! No Quickstop or other parts of ANSI B 175.1-2000 14 MS 650, MS 660 Clutch slippage can be...
Product Instruction Manual
Page 18
... let the nose of the guide bar contact any STIHL chain saw. Be especially careful near wire fences and when cutting small, tough limbs, small size brush and saplings which may cause the operator to close and pinch the chain. 11. Don't cut . 9. Warning! To avoid Pushback 1. Stand to open the kerf or cut with the chain rotating at full speed and the bumper spike...
... let the nose of the guide bar contact any STIHL chain saw. Be especially careful near wire fences and when cutting small, tough limbs, small size brush and saplings which may cause the operator to close and pinch the chain. 11. Don't cut . 9. Warning! To avoid Pushback 1. Stand to open the kerf or cut with the chain rotating at full speed and the bumper spike...
Product Instruction Manual
Page 25
... STIHL chain saw in the instruction manual). annually. Store chain saw should also be kept free of fire and hearing loss. MS 650, MS 660 23 Warning! Warning! Keep the chain, bar and sprocket clean; replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it must be properly maintained. twice a year, Occasional usage - every three months, Moderate usage - Do not clean your machine with a removed spark plug...
... STIHL chain saw in the instruction manual). annually. Store chain saw should also be kept free of fire and hearing loss. MS 650, MS 660 23 Warning! Warning! Keep the chain, bar and sprocket clean; replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it must be properly maintained. twice a year, Occasional usage - every three months, Moderate usage - Do not clean your machine with a removed spark plug...
Product Instruction Manual
Page 28
... can cause running problems or even damage the engine. Avoid direct contact with a lower octane rating may increase engine temperatures. When mixing, pour oil into the mixture. Do not fill fuel canisters that you use in or on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 26 MS 650, MS 660 The canister should not be kept tightly closed in turn, increases the...
... can cause running problems or even damage the engine. Avoid direct contact with a lower octane rating may increase engine temperatures. When mixing, pour oil into the mixture. Do not fill fuel canisters that you use in or on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 26 MS 650, MS 660 The canister should not be kept tightly closed in turn, increases the...
Product Instruction Manual
Page 32
... switch to the position for "summer operation" again! overheating! N Replace the carburetor box cover and tighten the knob Air filter system N Retrofit new air filter if necessary - N If the chain saw is mounted, the slide must be in winter position in the carburetor box cover. The partial covering of the slits in from summer position to operating temperature at increased idle speed (disengage chain brake!) N If engine trouble occurs, first check whether use is maintenance-free. 137BA016 KN 30 MS 650, MS 660...
... switch to the position for "summer operation" again! overheating! N Replace the carburetor box cover and tighten the knob Air filter system N Retrofit new air filter if necessary - N If the chain saw is mounted, the slide must be in winter position in the carburetor box cover. The partial covering of the slits in from summer position to operating temperature at increased idle speed (disengage chain brake!) N If engine trouble occurs, first check whether use is maintenance-free. 137BA016 KN 30 MS 650, MS 660...
Product Instruction Manual
Page 36
... tank fillings. This protects enginemounted components (ignition, carburetor) from thermal overload. Always slacken off , it can damage the crankshaft and bearings. 34 MS 650, MS 660 English N Move the Master Control lever to clear the combustion chamber N Replace the spark plug - see "Spark plug" N Dry spark plug N Crank the engine several times with the chain brake engaged (chain locked) will quickly damage the shortblock and chain drive (clutch, chain brake). see "Tensioning the Saw Chain". even if the engine...
... tank fillings. This protects enginemounted components (ignition, carburetor) from thermal overload. Always slacken off , it can damage the crankshaft and bearings. 34 MS 650, MS 660 English N Move the Master Control lever to clear the combustion chamber N Replace the spark plug - see "Spark plug" N Dry spark plug N Crank the engine several times with the chain brake engaged (chain locked) will quickly damage the shortblock and chain drive (clutch, chain brake). see "Tensioning the Saw Chain". even if the engine...
Product Instruction Manual
Page 41
... HL 137BA023 KN N Turn the high speed screw (H) counterclockwise as far as possible - N Check the spark arresting screen in the muffler (present only in idle even after adjustment, have the chain saw chain begins to standard setting N Turn the idle speed screw (LA) counterclockwise until the engine runs smoothly and accelerates correctly - then turn the low speed screw (L) clockwise - Saw chain rotates at idle speed N Set low speed screw to run - turn . clean or replace it back 1/4 turn low speed screw (L) counterclockwise until the chain stops running - then back...
... HL 137BA023 KN N Turn the high speed screw (H) counterclockwise as far as possible - N Check the spark arresting screen in the muffler (present only in idle even after adjustment, have the chain saw chain begins to standard setting N Turn the idle speed screw (LA) counterclockwise until the engine runs smoothly and accelerates correctly - then turn the low speed screw (L) clockwise - Saw chain rotates at idle speed N Set low speed screw to run - turn . clean or replace it back 1/4 turn low speed screw (L) counterclockwise until the chain stops running - then back...
Product Instruction Manual
Page 43
... engine oil in the boot may result in trouble in the direction of fire and burn injury, use only spark plugs authorized by STIHL. operating at part throttle etc.) affect the condition of spark plug: - These factors cause deposits to start or runs poorly at idling speed, first check the spark plug. Unfavorable running conditions (mostly at part load. 000BA039 KN Warning! Install spark plug N Screw in fuel mix. - N Check electrode gap (A) and readjust if necessary - see "Specifications". N Use only resistor type spark plugs...
... engine oil in the boot may result in trouble in the direction of fire and burn injury, use only spark plugs authorized by STIHL. operating at part throttle etc.) affect the condition of spark plug: - These factors cause deposits to start or runs poorly at idling speed, first check the spark plug. Unfavorable running conditions (mostly at part load. 000BA039 KN Warning! Install spark plug N Screw in fuel mix. - N Check electrode gap (A) and readjust if necessary - see "Specifications". N Use only resistor type spark plugs...
Product Instruction Manual
Page 52
... Box Cover Twist Lock 2 Spark Plug Boot 3 Carburetor Adjusting Screws 4 Handle Heating Switch (Depending on Model) 5 Chain Sprocket Cover 6 Chain Sprocket 7 Chain Brake 8 Chain Tensioner 9 Chain Catcher 10 Bumper Spike 11 Guide Bar 12 Oilomatic Saw Chain 13 Oil Filler Cap 14 Muffler with Spark Arresting Screen 15 Front Hand Guard 16 Front Handle (Handlebar) 17 Decompression Valve (Automatically Resetting) 18 Starter Grip 19 Fuel Filler Cap 20 Master Control Lever 21 Throttle Trigger 22 Throttle Trigger Lockout 23 Rear Handle 24 Rear Hand Guard # Serial Number 178BA004 KN 50 MS 650, MS 660
... Box Cover Twist Lock 2 Spark Plug Boot 3 Carburetor Adjusting Screws 4 Handle Heating Switch (Depending on Model) 5 Chain Sprocket Cover 6 Chain Sprocket 7 Chain Brake 8 Chain Tensioner 9 Chain Catcher 10 Bumper Spike 11 Guide Bar 12 Oilomatic Saw Chain 13 Oil Filler Cap 14 Muffler with Spark Arresting Screen 15 Front Hand Guard 16 Front Handle (Handlebar) 17 Decompression Valve (Automatically Resetting) 18 Starter Grip 19 Fuel Filler Cap 20 Master Control Lever 21 Throttle Trigger 22 Throttle Trigger Lockout 23 Rear Handle 24 Rear Hand Guard # Serial Number 178BA004 KN 50 MS 650, MS 660
Product Instruction Manual
Page 53
... throttle trigger can be activated. 23 Rear Handle The support handle for the right hand, located at the front of the saw chain. 7 Chain Brake A device to stop the rotation of the chain. Guide Bar Nose The exposed end of cutters, tie straps and drive links. 13 Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting the engine. 19 Fuel Filler Cap For closing the oil tank. 14 Muffler with the ignition lead. 3 Carburetor Adjusting Screws...
... throttle trigger can be activated. 23 Rear Handle The support handle for the right hand, located at the front of the saw chain. 7 Chain Brake A device to stop the rotation of the chain. Guide Bar Nose The exposed end of cutters, tie straps and drive links. 13 Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting the engine. 19 Fuel Filler Cap For closing the oil tank. 14 Muffler with the ignition lead. 3 Carburetor Adjusting Screws...
Product Instruction Manual
Page 55
.... MS 650, MS 660 53 This will make reordering simpler. When purchasing these parts, always quote the saw chain are subject to comply with the kickback performance requirements of Sec. 5.11 of this Manual, ask your STIHL dealer for the latest STIHL recommendations. The guide bar and saw model, the part numbers and names of the guide bar and saw chain in the spaces provided. Model Serial number Guide bar part number Chain part number See "Specifications" in this specific powerhead...
.... MS 650, MS 660 53 This will make reordering simpler. When purchasing these parts, always quote the saw chain are subject to comply with the kickback performance requirements of Sec. 5.11 of this Manual, ask your STIHL dealer for the latest STIHL recommendations. The guide bar and saw model, the part numbers and names of the guide bar and saw chain in the spaces provided. Model Serial number Guide bar part number Chain part number See "Specifications" in this specific powerhead...
Product Instruction Manual
Page 56
... be repaired or replaced by an authorized STIHL servicing dealer using original STIHL replacement parts. Other repair work is performed at an authorized dealer), parts and labor. STIHL Incorporated Federal Emission Control Warranty Statement Your Warranty Rights and Obligations The U.S. EPA standards for small non road engines. new 1997 and later model year small off -road equipment engine owner, you retain all scheduled maintenance. The symbol may be designed, built and...
... be repaired or replaced by an authorized STIHL servicing dealer using original STIHL replacement parts. Other repair work is performed at an authorized dealer), parts and labor. STIHL Incorporated Federal Emission Control Warranty Statement Your Warranty Rights and Obligations The U.S. EPA standards for small non road engines. new 1997 and later model year small off -road equipment engine owner, you retain all scheduled maintenance. The symbol may be designed, built and...
Product Instruction Manual
Page 57
... a STIHL customer service representative at any warranty maintenance or repairs on the application of charge to STIHL. Any such work will be free of the recommended 2-stroke fuel-oil MS 650, MS 660 55 Fuel Line - STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that part. Fasteners Where to make a Claim for a period of time, not to meet all applicable regulations. Air Filter - problem exists. Choke (Cold Start...
... a STIHL customer service representative at any warranty maintenance or repairs on the application of charge to STIHL. Any such work will be free of the recommended 2-stroke fuel-oil MS 650, MS 660 55 Fuel Line - STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that part. Fasteners Where to make a Claim for a period of time, not to meet all applicable regulations. Air Filter - problem exists. Choke (Cold Start...