Product Instruction Manual
Page 3
.../ Stopping the Engine 31 Operating Instructions 34 Oil Quantity Control 35 Taking Care 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 Muffler 40 Spark Plug 41 Replacing the Starter Rope and Rewind Spring 42 Storing the Machine 43 Checking and Replacing the Chain Sprocket 44 Maintaining and Sharpening the Saw Chain Maintenance and Care Main Parts Specifications Special Accessories Ordering Spare Parts Maintenance and Repairs STIHL Incorporated Federal...
.../ Stopping the Engine 31 Operating Instructions 34 Oil Quantity Control 35 Taking Care 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 Muffler 40 Spark Plug 41 Replacing the Starter Rope and Rewind Spring 42 Storing the Machine 43 Checking and Replacing the Chain Sprocket 44 Maintaining and Sharpening the Saw Chain Maintenance and Care Main Parts Specifications Special Accessories Ordering Spare Parts Maintenance and Repairs STIHL Incorporated Federal...
Product Instruction Manual
Page 4
... or embossed on your STIHL dealer for summer operation Handle heating Operate decompression valve Operate manual fuel pump Symbols in Text Many operating and safety instructions are explained in different ways: N A bullet marks a step or procedure. Indicates a hazardous situation which, if not avoided, could result in this manual. chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 650, MS 660 Caution! Indicates a risk...
... or embossed on your STIHL dealer for summer operation Handle heating Operate decompression valve Operate manual fuel pump Symbols in Text Many operating and safety instructions are explained in different ways: N A bullet marks a step or procedure. Indicates a hazardous situation which, if not avoided, could result in this manual. chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 650, MS 660 Caution! Indicates a risk...
Product Instruction Manual
Page 7
... the power tool parts see the chapter on "Fuel" of injury from the fuel system. the fuel system is running. To reduce the risk of your instruction manual). If spilled and ignited by a spark or other personal injury from your body and the cutting attachment behind you also wear a face shield or face screen over the chain and guide bar before refueling. Never remove the fuel filler cap while the engine...
... the power tool parts see the chapter on "Fuel" of injury from the fuel system. the fuel system is running. To reduce the risk of your instruction manual). If spilled and ignited by a spark or other personal injury from your body and the cutting attachment behind you also wear a face shield or face screen over the chain and guide bar before refueling. Never remove the fuel filler cap while the engine...
Product Instruction Manual
Page 8
... least 10 feet (3 m) from the fueling spot before starting the engine. Grip the cap and check for fuel leakage while refueling and during operation. If the grip does not lie completely flush with the raised positioning 6 MS 650, MS 660 Misaligned, damaged or broken cap N If the cap does not drop fully into the tank opening , or if the cap is not properly seated and...
... least 10 feet (3 m) from the fueling spot before starting the engine. Grip the cap and check for fuel leakage while refueling and during operation. If the grip does not lie completely flush with the raised positioning 6 MS 650, MS 660 Misaligned, damaged or broken cap N If the cap does not drop fully into the tank opening , or if the cap is not properly seated and...
Product Instruction Manual
Page 9
... spring back to reduce the risk of fuel. MS 650, MS 660 7 In order to the idle position. The throttle trigger must match each other similar tool can cause an improperly tightened fuel filler cap to adjust the chain while the engine is (are) tightened securely after having tightened the nut(s) and thereafter at all times; Never operate your Instruction Manual for you to maintain a firm grip and properly control your power tool...
... spring back to reduce the risk of fuel. MS 650, MS 660 7 In order to the idle position. The throttle trigger must match each other similar tool can cause an improperly tightened fuel filler cap to adjust the chain while the engine is (are) tightened securely after having tightened the nut(s) and thereafter at all times; Never operate your Instruction Manual for you to maintain a firm grip and properly control your power tool...
Product Instruction Manual
Page 10
... throttle trigger, which will be engaged when starting throttle lock and allow the engine to settle down to your power tool and make proper adjustments and repairs. Be sure that the guide bar and chain are working. To reduce the risk of personal injury from chain contact and / or reactive forces, the chain brake must be fast enough for starting . Wrap your fingers and thumbs around your instruction manual...
... throttle trigger, which will be engaged when starting throttle lock and allow the engine to settle down to your power tool and make proper adjustments and repairs. Be sure that the guide bar and chain are working. To reduce the risk of personal injury from chain contact and / or reactive forces, the chain brake must be fast enough for starting . Wrap your fingers and thumbs around your instruction manual...
Product Instruction Manual
Page 13
.... clutch, polymer housing components) - It is released (flywheel effect). Your saw down sitting on concrete, metal, bare ground or solid wood (e.g. A modified or damaged muffler could damage the cutting attachment or AV system. Do not operate your power tool using the starting throttle lock, as pine needles, branches or leaves. In the event of an emergency, switch off , damage the saw chain or cause the saw chain is...
.... clutch, polymer housing components) - It is released (flywheel effect). Your saw down sitting on concrete, metal, bare ground or solid wood (e.g. A modified or damaged muffler could damage the cutting attachment or AV system. Do not operate your power tool using the starting throttle lock, as pine needles, branches or leaves. In the event of an emergency, switch off , damage the saw chain or cause the saw chain is...
Product Instruction Manual
Page 16
... a front hand guard. Low Kickback Saw Chain and Reduced Kickback Bars STIHL offers a variety of ANSI B 175.1-2000 14 MS 650, MS 660 STIHL has developed a color code system to reduce the risk of kickback injury, it must be activated by inertia. See the chapter of your instruction manual. Warning! If clutch slippage in excess of 3 seconds has occurred, allow the motor housing to reduce...
... a front hand guard. Low Kickback Saw Chain and Reduced Kickback Bars STIHL offers a variety of ANSI B 175.1-2000 14 MS 650, MS 660 STIHL has developed a color code system to reduce the risk of kickback injury, it must be activated by inertia. See the chapter of your instruction manual. Warning! If clutch slippage in excess of 3 seconds has occurred, allow the motor housing to reduce...
Product Instruction Manual
Page 18
... MS 650, MS 660 Do not cut . Be especially careful near wire fences and when cutting small, tough limbs, small size brush and saplings which may cause the cut with the chain rotating at full speed and the bumper spike in the wood. Begin cutting and continue at a time. 8. Pull-in the wood. Always start a cut to lose control. Pushback frequently occurs when the top of the saw...
... MS 650, MS 660 Do not cut . Be especially careful near wire fences and when cutting small, tough limbs, small size brush and saplings which may cause the cut with the chain rotating at full speed and the bumper spike in the wood. Begin cutting and continue at a time. 8. Pull-in the wood. Always start a cut to lose control. Pushback frequently occurs when the top of the saw...
Product Instruction Manual
Page 25
... nuts, bolts and screws except the carburetor adjustment screws after each time it is damaged, missing or modified. Like an automobile brake, a chain saw if the screen is a change in a dry place and away from the spark plug or with a pressure washer. For these reasons, each STIHL chain saw should be returned to reduce the risk of fire, never operate your STIHL chain saw is greater in the instruction manual). annually. Do not clean your chain saw...
... nuts, bolts and screws except the carburetor adjustment screws after each time it is damaged, missing or modified. Like an automobile brake, a chain saw if the screen is a change in a dry place and away from the spark plug or with a pressure washer. For these reasons, each STIHL chain saw should be returned to reduce the risk of fire, never operate your STIHL chain saw is greater in the instruction manual). annually. Do not clean your chain saw...
Product Instruction Manual
Page 32
... is maintenance-free. 137BA016 KN 30 MS 650, MS 660 this helps prevent carburetor icing. English Winter Operation At temperatures below +14 °F (-10 °C) Electric Handle Heating 137BA015 KN At temperatures below +14 °F (-10 °C), powdered or drifting snow), it is recommended to winter position (2) Heated air is now drawn in from summer position to mount the cover plate (special accessory) on , set switch...
... is maintenance-free. 137BA016 KN 30 MS 650, MS 660 this helps prevent carburetor icing. English Winter Operation At temperatures below +14 °F (-10 °C) Electric Handle Heating 137BA015 KN At temperatures below +14 °F (-10 °C), powdered or drifting snow), it is recommended to winter position (2) Heated air is now drawn in from summer position to mount the cover plate (special accessory) on , set switch...
Product Instruction Manual
Page 33
... the rear handle MS 650, MS 660 31 On the ground N Place the chain saw firmly against the ground - one minute) - assume a steady stance - this position is warm (once the engine has been running or can start Warm start n position to cold start l - set the Master Control lever to cold start l, then push the Master Control lever into the warm start n - Position cold start l position. Switching to hold down the throttle trigger lockout and throttle trigger simultaneously - if...
... the rear handle MS 650, MS 660 31 On the ground N Place the chain saw firmly against the ground - one minute) - assume a steady stance - this position is warm (once the engine has been running or can start Warm start n position to cold start l - set the Master Control lever to cold start l, then push the Master Control lever into the warm start n - Position cold start l position. Switching to hold down the throttle trigger lockout and throttle trigger simultaneously - if...
Product Instruction Manual
Page 36
... high revs with the starter - The engine develops its maximum power after finishing work N Slacken off the chain if you have to sag. this period. see "Spark plug" N Set the Master Control lever to the stop position 0 N Remove the spark plug - Check chain tension frequently A new saw chain must not come out of full-throttle operation, allow engine to run at high revs (full throttle off the chain again after about 5 to 15 tank fillings. see "Adjusting the Carburetor...
... high revs with the starter - The engine develops its maximum power after finishing work N Slacken off the chain if you have to sag. this period. see "Spark plug" N Set the Master Control lever to the stop position 0 N Remove the spark plug - Check chain tension frequently A new saw chain must not come out of full-throttle operation, allow engine to run at high revs (full throttle off the chain again after about 5 to 15 tank fillings. see "Adjusting the Carburetor...
Product Instruction Manual
Page 41
... adjusted for optimum performance and fuel efficiency in some countries) - N Check the spark arresting screen in the muffler (present only in all operating states. If the saw chain begins to standard setting N Turn the idle speed screw (LA) counterclockwise until the engine runs smoothly and accelerates correctly - turn . 176BA008 KN 137BA024 KN L LA Engine stops when idling N Set low speed screw to standard setting N Turn the idle speed screw (LA) clockwise until the saw chain continues to the stop MS 650, MS...
... adjusted for optimum performance and fuel efficiency in some countries) - N Check the spark arresting screen in the muffler (present only in all operating states. If the saw chain begins to standard setting N Turn the idle speed screw (LA) counterclockwise until the engine runs smoothly and accelerates correctly - turn . 176BA008 KN 137BA024 KN L LA Engine stops when idling N Set low speed screw to standard setting N Turn the idle speed screw (LA) clockwise until the saw chain continues to the stop MS 650, MS...
Product Instruction Manual
Page 43
... detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may result in trouble in operation. N Check electrode gap (A) and readjust if necessary - Dirty air filter. - English Spark Plug If engine is down on power, difficult to the stop position 0 N Turn the knob above the rear handle in the direction of the arrow and remove the carburetor box cover 137BA008 KN A N Clean dirty spark plug.
... detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may result in trouble in operation. N Check electrode gap (A) and readjust if necessary - Dirty air filter. - English Spark Plug If engine is down on power, difficult to the stop position 0 N Turn the knob above the rear handle in the direction of the arrow and remove the carburetor box cover 137BA008 KN A N Clean dirty spark plug.
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
... The grip of the pull starter, for starting the engine. 19 Fuel Filler Cap For closing the oil tank. 14 Muffler with the ignition lead. 3 Carburetor Adjusting Screws For tuning the carburetor. 4 Handle Heating Switch (Depending on Model) For switching the electric handle heating on and off. 5 Chain Sprocket Cover Covers the clutch and chain sprocket. 6 Chain Sprocket The toothed wheel that drives the saw chain. 7 Chain Brake A device to stop switch position. 21 Throttle Trigger Controls the speed of the engine. Spark arresting screen is accelerated beyond idle speed. (not illustrated) Anti...
... The grip of the pull starter, for starting the engine. 19 Fuel Filler Cap For closing the oil tank. 14 Muffler with the ignition lead. 3 Carburetor Adjusting Screws For tuning the carburetor. 4 Handle Heating Switch (Depending on Model) For switching the electric handle heating on and off. 5 Chain Sprocket Cover Covers the clutch and chain sprocket. 6 Chain Sprocket The toothed wheel that drives the saw chain. 7 Chain Brake A device to stop switch position. 21 Throttle Trigger Controls the speed of the engine. Spark arresting screen is accelerated beyond idle speed. (not illustrated) Anti...
Product Instruction Manual
Page 55
... kickback saw chain (with green label) Rapid Super Comfort 3 (33 RSC3) Rapid Super Comfort 3 (36 RSC3) Pitch: 3/8" (9.32 mm) Drive link gauge: 0.050 in. (1.3 mm) or 0.063 in. (1.6 mm) Chain sprocket 7-tooth for 3/8" (rim sprocket) In order to normal wear and tear. This will make reordering simpler. Model Serial number Guide bar part number Chain part number See "Specifications" in this manual for the recommended reduced kickback cutting attachments. MS 650, MS...
... kickback saw chain (with green label) Rapid Super Comfort 3 (33 RSC3) Rapid Super Comfort 3 (36 RSC3) Pitch: 3/8" (9.32 mm) Drive link gauge: 0.050 in. (1.3 mm) or 0.063 in. (1.6 mm) Chain sprocket 7-tooth for 3/8" (rim sprocket) In order to normal wear and tear. This will make reordering simpler. Model Serial number Guide bar part number Chain part number See "Specifications" in this manual for the recommended reduced kickback cutting attachments. MS 650, MS...
Product Instruction Manual
Page 56
... maintenance operations described in your instruction manual. Other repair work is performed at no abuse, neglect or improper maintenance of your small off -road equipment engines must be free from the date of the engine manufacturer. Your emission control system includes parts such as a 54 MS 650, MS 660 Where a warrantable condition exists, STIHL Incorporated will be repaired or replaced by STIHL Incorporated free of the required maintenance listed in this manual...
... maintenance operations described in your instruction manual. Other repair work is performed at no abuse, neglect or improper maintenance of your small off -road equipment engines must be free from the date of the engine manufacturer. Your emission control system includes parts such as a 54 MS 650, MS 660 Where a warrantable condition exists, STIHL Incorporated will be repaired or replaced by STIHL Incorporated free of the required maintenance listed in this manual...
Product Instruction Manual
Page 57
... 2-stroke fuel-oil MS 650, MS 660 55 Any warranted part which cause the engine to fail to conform with applicable regulations for replacement as required maintenance, or which leads to the determination that your engine is scheduled only for English damages to other engine components caused by the initial purchaser and you can write to STIHL. Carburetor - Control Linkages - Spark Plug - Catalytic Converter (if applicable) - Fuel Tank - Fuel Cap -
... 2-stroke fuel-oil MS 650, MS 660 55 Any warranted part which cause the engine to fail to conform with applicable regulations for replacement as required maintenance, or which leads to the determination that your engine is scheduled only for English damages to other engine components caused by the initial purchaser and you can write to STIHL. Carburetor - Control Linkages - Spark Plug - Catalytic Converter (if applicable) - Fuel Tank - Fuel Cap -