Instruction Manual
Page 2
... Tools ...... 35 Maintenance Chart 37 Parts and Controls 38 Specifications 40 Special Accessories 40 Maintenance and Repairs 41 STIHL Incorporated Federal Emission Control Warranty Statement 42 STIHl FS 500, FS 550 English / USA Allow only persons who understand this manual. !Warning! Because a clearing saw . K8....Machine 26 Starting / Stopping the Engine ........ 26 Operating Instructions 28 Cleaning the Air Filter 29 Motor Management 29 Adjusting the Carburetor 30 Spark Arresting Screen in this manual to reduce the risk of personal injury. Make sure your clearing saw is to...
... Tools ...... 35 Maintenance Chart 37 Parts and Controls 38 Specifications 40 Special Accessories 40 Maintenance and Repairs 41 STIHL Incorporated Federal Emission Control Warranty Statement 42 STIHl FS 500, FS 550 English / USA Allow only persons who understand this manual. !Warning! Because a clearing saw . K8....Machine 26 Starting / Stopping the Engine ........ 26 Operating Instructions 28 Cleaning the Air Filter 29 Motor Management 29 Adjusting the Carburetor 30 Spark Arresting Screen in this manual to reduce the risk of personal injury. Make sure your clearing saw is to...
Instruction Manual
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...intended diameter. Before storing for your clearing saw if the screen is missing or damaged. See chapter "Storing the machine". If your STIHL Owner's Manual should be strictly followed. For any part of forest fires is damaged, missing or modified. With a properly mounted guard...from spark plug or with a spark-arresting screen to the clutch mechanism and nearby parts. 002BA018 LÄ FS 500, FS 550 13 Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use with mowing line longer than a few days, always empty the fuel tank. ...
...intended diameter. Before storing for your clearing saw if the screen is missing or damaged. See chapter "Storing the machine". If your STIHL Owner's Manual should be strictly followed. For any part of forest fires is damaged, missing or modified. With a properly mounted guard...from spark plug or with a spark-arresting screen to the clutch mechanism and nearby parts. 002BA018 LÄ FS 500, FS 550 13 Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use with mowing line longer than a few days, always empty the fuel tank. ...
Instruction Manual
Page 24
...damage the engine. FS 500, FS 550 23 If the mounting nut is too loose (cannot be tightened properly), fit a new one. 398BA050 KN This engine is lower, use only nationally recognized high-quality unleaded gasoline! Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil ... : Place the cutting tool (1) in turn, increases the risk of piston seizure and damage to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1. Use mid-grade unleaded gasoline with a lower octane rating may increase engine temperatures. For...
...damage the engine. FS 500, FS 550 23 If the mounting nut is too loose (cannot be tightened properly), fit a new one. 398BA050 KN This engine is lower, use only nationally recognized high-quality unleaded gasoline! Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil ... : Place the cutting tool (1) in turn, increases the risk of piston seizure and damage to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1. Use mid-grade unleaded gasoline with a lower octane rating may increase engine temperatures. For...
Instruction Manual
Page 26
FS 500, FS 550 398BA015 KN 002BA240 KN 2 3 : Put on the full harness (1). : Adjust length until the spring hook (2) is...Machine". 25 Over-long straps can be cut to length after making the adjustments. : Attach the spring hook to g. : Remove carburetor box cover (1). : Pry grommet (2) with fuel hose out of the pickup body is about a hand's width below your right...are using - English / USA Fitting the Harness : Push grommet home and check that it is properly seated. : Fit the carburetor box cover. 1 A 32 1 Change the fuel pickup body once every year : Drain the fuel tank. : Set the choke...
FS 500, FS 550 398BA015 KN 002BA240 KN 2 3 : Put on the full harness (1). : Adjust length until the spring hook (2) is...Machine". 25 Over-long straps can be cut to length after making the adjustments. : Attach the spring hook to g. : Remove carburetor box cover (1). : Pry grommet (2) with fuel hose out of the pickup body is about a hand's width below your right...are using - English / USA Fitting the Harness : Push grommet home and check that it is properly seated. : Fit the carburetor box cover. 1 A 32 1 Change the fuel pickup body once every year : Drain the fuel tank. : Set the choke...
Instruction Manual
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... as the engine runs: : Blip the throttle trigger (2) - Do not pull out the starter rope all the way - it a brisk strong pull. FS 500, FS 550 27 As soon as the engine runs: : Blip the throttle trigger - the slide control moves to the run position # and the engine returns to fire.... see chapter "Winter Operation". English / USA : Put the unit on the ground: It must not rotate when the engine is flooded. Make sure the carburetor is ready for a brief period. even if bulb is not touching the ground or any other obstacles. : Make sure you have a firm footing: Hold...
... as the engine runs: : Blip the throttle trigger (2) - Do not pull out the starter rope all the way - it a brisk strong pull. FS 500, FS 550 27 As soon as the engine runs: : Blip the throttle trigger - the slide control moves to the run position # and the engine returns to fire.... see chapter "Winter Operation". English / USA : Put the unit on the ground: It must not rotate when the engine is flooded. Make sure the carburetor is ready for a brief period. even if bulb is not touching the ground or any other obstacles. : Make sure you have a firm footing: Hold...
Instruction Manual
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... the throttle cable is cold. : Now start the engine. The engine develops its maximum power after about 5 to cool down. This protects enginemounted components (ignition, carburetor) from g even if the engine is properly adjusted - Store the machine in the engine can be dissipated by pulling the starter rope firmly - 10 to... the screw. : Move the slide control to run at high revs (full throttle off load) for a while at regular intervals and retighten as necessary. 28 FS 500, FS 550
... the throttle cable is cold. : Now start the engine. The engine develops its maximum power after about 5 to cool down. This protects enginemounted components (ignition, carburetor) from g even if the engine is properly adjusted - Store the machine in the engine can be dissipated by pulling the starter rope firmly - 10 to... the screw. : Move the slide control to run at high revs (full throttle off load) for a while at regular intervals and retighten as necessary. 28 FS 500, FS 550
Instruction Manual
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... it and reinstall. : Fit felt and fabric filter elements in the carburetor box cover. : Mount the carburetor box cover in STIHL universal cleaner or a clean, non-flammable cleaning solution (e.g. Exhaust emissions are... controlled by the design of engine power : Move the choke knob to g. : Loosen the mounting screws (1). : Remove the carburetor box cover (2) with compressed air. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. FS 500, FS 550...
... it and reinstall. : Fit felt and fabric filter elements in the carburetor box cover. : Mount the carburetor box cover in STIHL universal cleaner or a clean, non-flammable cleaning solution (e.g. Exhaust emissions are... controlled by the design of engine power : Move the choke knob to g. : Loosen the mounting screws (1). : Remove the carburetor box cover (2) with compressed air. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. FS 500, FS 550...
Instruction Manual
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... smoothly - Adjusting Idle Speed It is not satisfactory when operating at high altitude, at sea level or after every correction to Using this Manual" 30 FS 500, FS 550 Engine stops while idling : Turn idle speed screw (LA) slowly clockwise until there is no further than stop until there is possible that maximum... ft (1000m) change the setting of a turn from the factory with a standard setting. It is no noticeable increase in each case. English / USA Adjusting the Carburetor HL LA The carburetor comes from max.
... smoothly - Adjusting Idle Speed It is not satisfactory when operating at high altitude, at sea level or after every correction to Using this Manual" 30 FS 500, FS 550 Engine stops while idling : Turn idle speed screw (LA) slowly clockwise until there is no further than stop until there is possible that maximum... ft (1000m) change the setting of a turn from the factory with a standard setting. It is no noticeable increase in each case. English / USA Adjusting the Carburetor HL LA The carburetor comes from max.
Instruction Manual
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English / USA Winter Operation Checking the Spark Plug Change the air intake to the winter mode to help prevent air filter and carburetor icing at part load. see "Specifications". : Use only resistor type spark plugs of the spark plug. These factors cause deposits to form on power,... gap (A) and readjust if necessary - Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. 32 FS 500, FS 550 Change the air intake back to start or runs poorly at part throttle etc.) affect the condition of the approved range. Rectify problems which may...
English / USA Winter Operation Checking the Spark Plug Change the air intake to the winter mode to help prevent air filter and carburetor icing at part load. see "Specifications". : Use only resistor type spark plugs of the spark plug. These factors cause deposits to form on power,... gap (A) and readjust if necessary - Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. 32 FS 500, FS 550 Change the air intake back to start or runs poorly at part throttle etc.) affect the condition of the approved range. Rectify problems which may...
Instruction Manual
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...this helps prevent carburetor diaphragms sticking together. : Remove, clean and inspect the cutting tool. : Thoroughly clean the machine - two or three strokes of resin-free oil**. Fit the replacement spring with a few drops of the file are usually enough. 398BA026 KN ** see "Special Accessories" FS 500, FS 550 ** see ...: Store the machine in a dry, high or locked location - In case of injury, wear eye and face protection and work done by STIHL dealer. : Resharpen frequently, take away as little material as possible - For periods of about 3 months or longer : Drain and clean the...
...this helps prevent carburetor diaphragms sticking together. : Remove, clean and inspect the cutting tool. : Thoroughly clean the machine - two or three strokes of resin-free oil**. Fit the replacement spring with a few drops of the file are usually enough. 398BA026 KN ** see "Special Accessories" FS 500, FS 550 ** see ...: Store the machine in a dry, high or locked location - In case of injury, wear eye and face protection and work done by STIHL dealer. : Resharpen frequently, take away as little material as possible - For periods of about 3 months or longer : Drain and clean the...
Instruction Manual
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...Replace after 100 hours of cutting tool X X Metal cutting tools Sharpen X Safety labels Replace 1) STIHL recommends a STIHL servicing dealer * see "Guide to Using this Manual" FS 500, FS 550 before starting work after each refueling stop weekly monthly every 12 months if problem if damaged as ... tightness of operation Inspect X Cooling inlets Clean Spark arresting screen* in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - Maintenance Chart Please note that the following maintenance intervals apply for normal operating conditions.
...Replace after 100 hours of cutting tool X X Metal cutting tools Sharpen X Safety labels Replace 1) STIHL recommends a STIHL servicing dealer * see "Guide to Using this Manual" FS 500, FS 550 before starting work after each refueling stop weekly monthly every 12 months if problem if damaged as ... tightness of operation Inspect X Cooling inlets Clean Spark arresting screen* in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - Maintenance Chart Please note that the following maintenance intervals apply for normal operating conditions.
Instruction Manual
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... trigger 3= Slide control 4= Throttle trigger interlock 5= Clamp screws 6= Hexagon head screw 7= Carrying strip 8= Fuel pump 9= Choke knob 10= Air diverter for carburetor preheating 11= Carburetor box cover 12= Fuel tank 398BA035 KN 13 14 17 16 15 18 20 19 38 398BA036 KN 398BA037 KN 13= Spark plug boot... with cover 14= Decompression valve 15= Muffler with spark arresting screen* 16= Starter grip 17= Carburetor adjusting screws 18= Fuel filler cap 19= Machine Support 20= Cutting tool 21= Deflector 21 * see "Guide to Using this Manual" FS 500, FS 550
... trigger 3= Slide control 4= Throttle trigger interlock 5= Clamp screws 6= Hexagon head screw 7= Carrying strip 8= Fuel pump 9= Choke knob 10= Air diverter for carburetor preheating 11= Carburetor box cover 12= Fuel tank 398BA035 KN 13 14 17 16 15 18 20 19 38 398BA036 KN 398BA037 KN 13= Spark plug boot... with cover 14= Decompression valve 15= Muffler with spark arresting screen* 16= Starter grip 17= Carburetor adjusting screws 18= Fuel filler cap 19= Machine Support 20= Cutting tool 21= Deflector 21 * see "Guide to Using this Manual" FS 500, FS 550
Instruction Manual
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... with spark arresting screen) Reduces exhaust noises and diverts exhaust gases away from operator. 16. Hexagon Head Screw See item 5. 7. Carburetor Box Cover Covers the air filter element. 12. Fuel Tank For fuel and oil mixture. 13. Machine Support For resting machine on... Tool The cutting attachment for Carburetor Preheating Prevents carburetor icing. 11. Keeps the throttle partially open during cutting work. 2. Fuel Pump Provides additional fuel feed for a cold start the engine. 17. Starter Grip The grip of the engine. 3. FS 500, FS 550 39 Clamp Screws Locks handlebar ...
... with spark arresting screen) Reduces exhaust noises and diverts exhaust gases away from operator. 16. Hexagon Head Screw See item 5. 7. Carburetor Box Cover Covers the air filter element. 12. Fuel Tank For fuel and oil mixture. 13. Machine Support For resting machine on... Tool The cutting attachment for Carburetor Preheating Prevents carburetor icing. 11. Keeps the throttle partially open during cutting work. 2. Fuel Pump Provides additional fuel feed for a cold start the engine. 17. Starter Grip The grip of the engine. 3. FS 500, FS 550 39 Clamp Screws Locks handlebar ...
Instruction Manual
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...300 hours, B = 125 hours, C = 50 hours STIHL single cylinder two-stroke engine Displacement FS 500: 3.15 cu.in (51.7 cm3) FS 550: 3.45 cu.in (56.5 cm3) Bore FS 500: 1.73 in (44 mm) FS 550: 1.81 in (46 mm) Stroke FS 500: 1.34 in (34 mm) FS 550: 1.34 in (3.5 mm) dia. English / USA Specifications...hours for your STIHL dealer for information regarding special accessories that may be available for which the engine has been shown to ISO 8893 FS 500: 3.2 HP (2.4 kW) FS 550: 3.7 HP (2.8 kW) Max. x 37.8 in (960 mm) Part No. 1113 195 8200 Carburetor All position diaphragm carburetor with electronic ...
...300 hours, B = 125 hours, C = 50 hours STIHL single cylinder two-stroke engine Displacement FS 500: 3.15 cu.in (51.7 cm3) FS 550: 3.45 cu.in (56.5 cm3) Bore FS 500: 1.73 in (44 mm) FS 550: 1.81 in (46 mm) Stroke FS 500: 1.34 in (34 mm) FS 550: 1.34 in (3.5 mm) dia. English / USA Specifications...hours for your STIHL dealer for information regarding special accessories that may be available for which the engine has been shown to ISO 8893 FS 500: 3.2 HP (2.4 kW) FS 550: 3.7 HP (2.8 kW) Max. x 37.8 in (960 mm) Part No. 1113 195 8200 Carburetor All position diaphragm carburetor with electronic ...
Instruction Manual
Page 43
...23450-2015. new 1997 and later model year small off -road equipment engine or a part has failed due to STIHL. 42 FS 500, FS 550 Also included may deny you are pleased to conform with applicable regulations for the performance of all scheduled maintenance. Any replacement...you should be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to the ultimate purchaser. Environmental Protection Agency (EPA) and STIHL Incorporated are responsible for a period of time, not to a STIHL service center as soon as the carburetor and the ignition system. You are...
...23450-2015. new 1997 and later model year small off -road equipment engine or a part has failed due to STIHL. 42 FS 500, FS 550 Also included may deny you are pleased to conform with applicable regulations for the performance of all scheduled maintenance. Any replacement...you should be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to the ultimate purchaser. Environmental Protection Agency (EPA) and STIHL Incorporated are responsible for a period of time, not to a STIHL service center as soon as the carburetor and the ignition system. You are...
Instruction Manual
Page 44
...the warranty period. Warranty Work STIHL Incorporated shall remedy warranty defects at no cost to the owner. Deviations from this manual are based on emission-related parts and must be provided without charge to the owner. FS 500, FS 550 43 Any warranted part which ... or approved in this recommendation regarding quality and mixing ratio of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter...
...the warranty period. Warranty Work STIHL Incorporated shall remedy warranty defects at no cost to the owner. Deviations from this manual are based on emission-related parts and must be provided without charge to the owner. FS 500, FS 550 43 Any warranted part which ... or approved in this recommendation regarding quality and mixing ratio of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter...