Instruction Manual
Page 2
... receive maximum performance and satisfaction from time to Using this manual, please contact your trimmer/brushcutter. Contact your STIHL dealer or the STIHL distributor for your area if you read and understand the maintenance and safety precautions, starting on chlorine-free paper...38 Cleaning the Air Filter 38 Motor Management 39 Adjusting the Carburetor 39 Spark Arresting Screen in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 D8. As a result, engineering changes and improvements are made from your STIHL trimmer/ brushcutter, it is equipped with the proper deflector, ...
... receive maximum performance and satisfaction from time to Using this manual, please contact your trimmer/brushcutter. Contact your STIHL dealer or the STIHL distributor for your area if you read and understand the maintenance and safety precautions, starting on chlorine-free paper...38 Cleaning the Air Filter 38 Motor Management 39 Adjusting the Carburetor 39 Spark Arresting Screen in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 D8. As a result, engineering changes and improvements are made from your STIHL trimmer/ brushcutter, it is equipped with the proper deflector, ...
Instruction Manual
Page 20
Before storing for longer than a few days, always empty the fuel tank. !Warning! FS 80, FS 80 R, FS 85, FS 85 R English / USA 19 Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use. Store the power tool in serious or fatal injuries. This may cause parts of the cutting attachment to come off and result in a dry and high or locked location out of reach of children. Never repair damaged cutting attachments by welding, straightening or modifying the shape. See chapter "Storing the Machine" in the instruction manual. Keep blades sharp.
Before storing for longer than a few days, always empty the fuel tank. !Warning! FS 80, FS 80 R, FS 85, FS 85 R English / USA 19 Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use. Store the power tool in serious or fatal injuries. This may cause parts of the cutting attachment to come off and result in a dry and high or locked location out of reach of children. Never repair damaged cutting attachments by welding, straightening or modifying the shape. See chapter "Storing the Machine" in the instruction manual. Keep blades sharp.
Instruction Manual
Page 32
... chemical composition of 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that ... risk of the mid-grade gasoline in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). FS 80, FS 80 R, FS 85, FS 85 R 31 Collar (see arrows) must locate in or on the thrust plate (7). This, in air cooled two-cycle engines. This...
... chemical composition of 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that ... risk of the mid-grade gasoline in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). FS 80, FS 80 R, FS 85, FS 85 R 31 Collar (see arrows) must locate in or on the thrust plate (7). This, in air cooled two-cycle engines. This...
Instruction Manual
Page 33
... ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. 389BA031 KN 389BA032 KN 32 FS 80, FS 80 R, FS 85, FS 85 R Before fueling, clean the filler cap and the area around it vigorously by hand. Always thoroughly shake the... risk of empty mixing-oil canisters only at authorized disposal locations. Close the canister and shake it to ensure proper mixing of storage. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 Dispose of burns or other personal injury from...
... ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. 389BA031 KN 389BA032 KN 32 FS 80, FS 80 R, FS 85, FS 85 R Before fueling, clean the filler cap and the area around it vigorously by hand. Always thoroughly shake the... risk of empty mixing-oil canisters only at authorized disposal locations. Close the canister and shake it to ensure proper mixing of storage. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 Dispose of burns or other personal injury from...
Instruction Manual
Page 38
... position # and the engine settles down to idle speed. Your machine is filled with the starter to 20 pulls may be necessary. FS 80, FS 80 R, FS 85, FS 85 R 37 Make sure the carburetor is idling. At very low outside temperatures As soon as engine runs: : Blip the throttle trigger to e - The slide control moves to...
... position # and the engine settles down to idle speed. Your machine is filled with the starter to 20 pulls may be necessary. FS 80, FS 80 R, FS 85, FS 85 R 37 Make sure the carburetor is idling. At very low outside temperatures As soon as engine runs: : Blip the throttle trigger to e - The slide control moves to...
Instruction Manual
Page 39
... in the engine can knock it out on the palm of your hand or blow it snaps into position. 355BA031 KN 38 FS 80, FS 80 R, FS 85, FS 85 R This protects enginemounted components (ignition, carburetor) from around the filter. : Remove the foam and felt filter elements. 355BA014 KN 2 3 4 5 355BA032 KN : Wash the foam element in period...
... in the engine can knock it out on the palm of your hand or blow it snaps into position. 355BA031 KN 38 FS 80, FS 80 R, FS 85, FS 85 R This protects enginemounted components (ignition, carburetor) from around the filter. : Remove the foam and felt filter elements. 355BA014 KN 2 3 4 5 355BA032 KN : Wash the foam element in period...
Instruction Manual
Page 40
... (max. 3/4 turn counterclockwise. : Start and warm up the engine. : Adjust idle speed with a standard setting. FS 80, FS 80 R, FS 85, FS 85 R 39 This setting provides an optimum fuel-air mixture under most operating conditions. Motor Management Adjusting the Carburetor English / USA Exhaust emissions are controlled by the design of any major hardware. HL 3/4 1 LA The...
... (max. 3/4 turn counterclockwise. : Start and warm up the engine. : Adjust idle speed with a standard setting. FS 80, FS 80 R, FS 85, FS 85 R 39 This setting provides an optimum fuel-air mixture under most operating conditions. Motor Management Adjusting the Carburetor English / USA Exhaust emissions are controlled by the design of any major hardware. HL 3/4 1 LA The...
Instruction Manual
Page 46
... checked on STIHL balancer (special accessory) and rebalanced as possible - To avoid out-of-balance : After resharpening about 3 months or longer : Drain and clean the fuel tank in a well ventilated area. : Dispose fuel properly in a dry, high or locked location - FS 80, FS 80 R, FS 85, FS 85 R 45... In case of more serious wear or nicks: Resharpen with local environmental requirements. : Run engine until carburetor is dry - line up the tank (3)and push the lower part of the...
... checked on STIHL balancer (special accessory) and rebalanced as possible - To avoid out-of-balance : After resharpening about 3 months or longer : Drain and clean the fuel tank in a well ventilated area. : Dispose fuel properly in a dry, high or locked location - FS 80, FS 80 R, FS 85, FS 85 R 45... In case of more serious wear or nicks: Resharpen with local environmental requirements. : Run engine until carburetor is dry - line up the tank (3)and push the lower part of the...
Instruction Manual
Page 48
... replaced by a STIHL servicing dealer * Not in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - the cutting tool must not turn X X Readjust idle Spark plug Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged as required English / USA X X X X X X X X X X X X X X X X X X FS 80, FS 80 R, FS 85, FS 85 R 47...
... replaced by a STIHL servicing dealer * Not in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - the cutting tool must not turn X X Readjust idle Spark plug Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged as required English / USA X X X X X X X X X X X X X X X X X X FS 80, FS 80 R, FS 85, FS 85 R 47...
Instruction Manual
Page 50
... Controls Part 1 9 1 8 2 10 3 4 7 5 11 6 15 20 14 13 13 # 16 12 17 19 20 18 14 9 10 8 393BA043 KN English / USA 1 Fuel pump 2 Choke lever 3 Carburetor adjusting screws 4 Starter grip 5 Fuel filler cap 6 Fuel tank 7 Muffler (with spark arresting screen*) 8 Throttle trigger 9 Slide control 10 Throttle trigger interlock 11 Bike handle... boot 16 Air filter cover 17 Machine support 18 Barrier bar, not in all versions, market-specific 19 Loop handle 20 Drive tube # Serial number FS 80, FS 80 R, FS 85, FS 85 R 49
... Controls Part 1 9 1 8 2 10 3 4 7 5 11 6 15 20 14 13 13 # 16 12 17 19 20 18 14 9 10 8 393BA043 KN English / USA 1 Fuel pump 2 Choke lever 3 Carburetor adjusting screws 4 Starter grip 5 Fuel filler cap 6 Fuel tank 7 Muffler (with spark arresting screen*) 8 Throttle trigger 9 Slide control 10 Throttle trigger interlock 11 Bike handle... boot 16 Air filter cover 17 Machine support 18 Barrier bar, not in all versions, market-specific 19 Loop handle 20 Drive tube # Serial number FS 80, FS 80 R, FS 85, FS 85 R 49
Instruction Manual
Page 51
.... 10. Muffler (with skirt (for a cold start the engine. 5. Spark Plug Boot Connects the spark plug to the drive tube. 14. Carburetor Adjusting Screws For tuning the carburetor. 4. Throttle Trigger Controls the speed of operator. 19. Slide Control For starting by enriching mixture. 3. Keeps the throttle partially open during starting,... both hands during cutting work . 12. Fuel Pump Provides additional fuel feed for all cutting tools) 5 Skirt 6 Metal mowing tool 002BA114 KN 50 FS 80, FS 80 R, FS 85, FS 85 R Bike Handle For easy control of machine during cutting work . 20.
.... 10. Muffler (with skirt (for a cold start the engine. 5. Spark Plug Boot Connects the spark plug to the drive tube. 14. Carburetor Adjusting Screws For tuning the carburetor. 4. Throttle Trigger Controls the speed of operator. 19. Slide Control For starting by enriching mixture. 3. Keeps the throttle partially open during starting,... both hands during cutting work . 12. Fuel Pump Provides additional fuel feed for all cutting tools) 5 Skirt 6 Metal mowing tool 002BA114 KN 50 FS 80, FS 80 R, FS 85, FS 85 R Bike Handle For easy control of machine during cutting work . 20.
Instruction Manual
Page 53
... 1.25; 0.37 in (2.7 mm) dia. English / USA Special Accessories Max. x 35.8 in (910 mm) long Weight without cutting tool and deflector FS 80 R 1) FS 80 2) FS 85 R 1) FS 85 2) FS 85 RX 1) 10.8 lb (4.9 kg) 11.5 lb (5.2 kg) 11.0 lb (5.0 kg) 11.7 lb (5.3 kg) 10.6 lb (4.8 kg) 1) Version... l) Fuel mix: See "Fuel" Rewind Starter Starter rope: 0.11 in (9.5 mm) long Fuel System Carburetor: All position diaphragm carburetor with bike handle Contact your STIHL dealer for information regarding special accessories that may be available for your product. 52 FS 80, FS 80 R, FS 85, FS 85 R
... 1.25; 0.37 in (2.7 mm) dia. English / USA Special Accessories Max. x 35.8 in (910 mm) long Weight without cutting tool and deflector FS 80 R 1) FS 80 2) FS 85 R 1) FS 85 2) FS 85 RX 1) 10.8 lb (4.9 kg) 11.5 lb (5.2 kg) 11.0 lb (5.0 kg) 11.7 lb (5.3 kg) 10.6 lb (4.8 kg) 1) Version... l) Fuel mix: See "Fuel" Rewind Starter Starter rope: 0.11 in (9.5 mm) long Fuel System Carburetor: All position diaphragm carburetor with bike handle Contact your STIHL dealer for information regarding special accessories that may be available for your product. 52 FS 80, FS 80 R, FS 85, FS 85 R
Instruction Manual
Page 55
...diagnostic work is free from defects in materials and workmanship which cause it to fail to a STIHL service center as soon as the carburetor and the ignition system. STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off-road engine for presenting .... If you warranty coverage if your small off -road equipment engine, but STIHL Incorporated cannot deny warranty solely for the lack of receipts or for a period of the engine manufacturer. Coverage by the initial purchaser and you can write to STIHL. 54 FS 80, FS 80 R, FS 85, FS 85 R
...diagnostic work is free from defects in materials and workmanship which cause it to fail to a STIHL service center as soon as the carburetor and the ignition system. STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off-road engine for presenting .... If you warranty coverage if your small off -road equipment engine, but STIHL Incorporated cannot deny warranty solely for the lack of receipts or for a period of the engine manufacturer. Coverage by the initial purchaser and you can write to STIHL. 54 FS 80, FS 80 R, FS 85, FS 85 R
Instruction Manual
Page 56
...to the determination that part. However, if you for the cost 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 (if ...a claim for a component and the machine is tested as the owner, shall not be performed either at STIHL Incorporated or at any independent test laboratory. FS 80, FS 80 R, FS 85, FS 85 R 55 English / USA If any emission related part on your engine is defective, the part will be...
...to the determination that part. However, if you for the cost 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 (if ...a claim for a component and the machine is tested as the owner, shall not be performed either at STIHL Incorporated or at any independent test laboratory. FS 80, FS 80 R, FS 85, FS 85 R 55 English / USA If any emission related part on your engine is defective, the part will be...
Instruction Manual
Page 57
... FS 80, FS 80 R, FS 85, FS 85 R Manufacturer's Warranty Coverage: This emissions control system is designed, built and equipped, at the time of sale, to meet the State's stringent anti-smog standards. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer... control system on your equipment is free from defects in a reasonable amount of time, not to a STIHL servicing dealer as soon as : Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (...
... FS 80, FS 80 R, FS 85, FS 85 R Manufacturer's Warranty Coverage: This emissions control system is designed, built and equipped, at the time of sale, to meet the State's stringent anti-smog standards. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer... control system on your equipment is free from defects in a reasonable amount of time, not to a STIHL servicing dealer as soon as : Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (...
Instruction Manual
Page 59
English / USA Trademarks Emission Warranty Parts List Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic ...Master Control Lever™ Micro™ Pro Mark™ Quad Power™ Quiet Line™ STIHL Arctic™ STIHL Compact™ STIHL HomeScaper Series™ STIHL Interchangeable Attachment Series™ 58 FS 80, FS 80 R, FS 85, FS 85 R Limitations The repair or replacement of any warranted part otherwise eligible for warranty coverage may be ...
English / USA Trademarks Emission Warranty Parts List Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic ...Master Control Lever™ Micro™ Pro Mark™ Quad Power™ Quiet Line™ STIHL Arctic™ STIHL Compact™ STIHL HomeScaper Series™ STIHL Interchangeable Attachment Series™ 58 FS 80, FS 80 R, FS 85, FS 85 R Limitations The repair or replacement of any warranted part otherwise eligible for warranty coverage may be ...