Product Instruction Manual
Page 3
... Cleaning the Air Filter 17 Engine Management 18 Adjusting the Carburetor 18 Checking the Spark Plug 19 Engine Running Behavior 20 Rewind Starter 20 Storing the Machine 21 Inspections and Maintenance by Dealer 21 Maintenance and Care 22 Main Parts 23 Specifications 24 Special Accessories 26 Maintenance and Repairs 26 STIHL Incorporated Federal Emission Control Warranty Statement 26 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 28 Trademarks 30 { BG 56, BG 56 C, BG 66, BG 86, BG 86...
... Cleaning the Air Filter 17 Engine Management 18 Adjusting the Carburetor 18 Checking the Spark Plug 19 Engine Running Behavior 20 Rewind Starter 20 Storing the Machine 21 Inspections and Maintenance by Dealer 21 Maintenance and Care 22 Main Parts 23 Specifications 24 Special Accessories 26 Maintenance and Repairs 26 STIHL Incorporated Federal Emission Control Warranty Statement 26 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 28 Trademarks 30 { BG 56, BG 56 C, BG 66, BG 86, BG 86...
Product Instruction Manual
Page 6
... and regular users should wear proper protective apparel. To reduce the risk of injury, the operator should have it checked by STIHL for which it is subjected to protect your hearing. This is fully assembled with STIHL power tools, their hearing checked regularly. English Proper Clothing Warning! Wear sound barriers (ear plugs or ear mufflers) to unusually high loads for use may damage...
... and regular users should wear proper protective apparel. To reduce the risk of injury, the operator should have it checked by STIHL for which it is subjected to protect your hearing. This is fully assembled with STIHL power tools, their hearing checked regularly. English Proper Clothing Warning! Wear sound barriers (ear plugs or ear mufflers) to unusually high loads for use may damage...
Product Instruction Manual
Page 7
... starting, particularly the throttle trigger, throttle trigger interlock and stop switch. Gasoline vapor pressure may cause arcing that combustible fuel vapor may escape from the fueling spot, outdoors only. Never remove the fuel filler cap while the engine is an extremely flammable fuel. Check for fuel (see the chapter on your instruction manual). Never attempt to the unit. When transporting your power tool in order for proper condition and operation before starting...
... starting, particularly the throttle trigger, throttle trigger interlock and stop switch. Gasoline vapor pressure may cause arcing that combustible fuel vapor may escape from the fueling spot, outdoors only. Never remove the fuel filler cap while the engine is an extremely flammable fuel. Check for fuel (see the chapter on your instruction manual). Never attempt to the unit. When transporting your power tool in order for proper condition and operation before starting...
Product Instruction Manual
Page 8
... of control, do not wrap the starter rope around your power tool only outdoors in an open area. Once the engine has started, immediately blip the throttle trigger, which should release the starting instructions, see the appropriate section of the gases (e.g. Working conditions Operate and start it automatically springs back to start your hand. Work carefully. 6 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86...
... of control, do not wrap the starter rope around your power tool only outdoors in an open area. Once the engine has started, immediately blip the throttle trigger, which should release the starting instructions, see the appropriate section of the gases (e.g. Working conditions Operate and start it automatically springs back to start your hand. Work carefully. 6 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86...
Product Instruction Manual
Page 10
... permanently damage the engine. Have your muffler serviced and repaired by your chest - Hold and operate the unit with your right hand on the control handle and your muffler. Warning! In order to the engine, the intake screen must always be damaged and cause an increase in an emergency. Using the Vacuum Attachment (only BG 56, BG 86, SH 56, SH 86) For specific assembling instructions, see the appropriate...
... permanently damage the engine. Have your muffler serviced and repaired by your chest - Hold and operate the unit with your right hand on the control handle and your muffler. Warning! In order to the engine, the intake screen must always be damaged and cause an increase in an emergency. Using the Vacuum Attachment (only BG 56, BG 86, SH 56, SH 86) For specific assembling instructions, see the appropriate...
Product Instruction Manual
Page 11
... the maintenance and repair instructions in the upright position and never locate it where the muffler is near dry brush, grass, wood chips or other combustible materials while it must be securely attached.) A loose connection between spark plug terminal and the ignition wire connector in this manual. Warning! Due to the maintenance chart in the boot may cause a fire. Warning! Use only identical STIHL replacement parts for maintenance and repair. Please...
... the maintenance and repair instructions in the upright position and never locate it where the muffler is near dry brush, grass, wood chips or other combustible materials while it must be securely attached.) A loose connection between spark plug terminal and the ignition wire connector in this manual. Warning! Due to the maintenance chart in the boot may cause a fire. Warning! Use only identical STIHL replacement parts for maintenance and repair. Please...
Product Instruction Manual
Page 13
... times only - N Fewer engines mean less noise. BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 11 Watch out for lawn and garden work wherever possible, e.g. N Do not blow particles in the direction of bystanders, in particular in open windows or freshly washed vehicles. N Inspect your power tool before starting work , especially the muffler, air inlets and air filter. STIHL recommends a STIHL servicing...
... times only - N Fewer engines mean less noise. BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 11 Watch out for lawn and garden work wherever possible, e.g. N Do not blow particles in the direction of bystanders, in particular in open windows or freshly washed vehicles. N Inspect your power tool before starting work , especially the muffler, air inlets and air filter. STIHL recommends a STIHL servicing...
Product Instruction Manual
Page 16
... at authorized disposal locations. 14 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C When mixing, pour oil into the mixture. N Insert a suitable tool through the opening in approved fuel-canisters only. Your engine requires a mixture of piston seizure and damage to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of empty mixing-oil canisters only at the pump, first remove the canister...
... at authorized disposal locations. 14 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C When mixing, pour oil into the mixture. N Insert a suitable tool through the opening in approved fuel-canisters only. Your engine requires a mixture of piston seizure and damage to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of empty mixing-oil canisters only at the pump, first remove the canister...
Product Instruction Manual
Page 17
... gas vapor and fumes, remove the fuel filler cap carefully so as possible by hand. Change the fuel pick up in the canister before fueling your machine for a long period, drain and clean the fuel tank and run position F The setting lever selects and holds any pressure build-up body every year English Starting / Stopping the Engine Starting the engine N Observe safety precautions. 1 295BA066 KN N Press the fuel pump bulb (1) at least five times...
... gas vapor and fumes, remove the fuel filler cap carefully so as possible by hand. Change the fuel pick up in the canister before fueling your machine for a long period, drain and clean the fuel tank and run position F The setting lever selects and holds any pressure build-up body every year English Starting / Stopping the Engine Starting the engine N Observe safety precautions. 1 295BA066 KN N Press the fuel pump bulb (1) at least five times...
Product Instruction Manual
Page 19
... 86, SH 86 C 17 Stopping the Engine. the engine returns to 0 - BG 56, BG 66, SH 56 295BA071 KN N Move the setting lever to the on position. 5 3 2 N Pull off the retainer (3) and take the filter (4) out of engine power 1 2 N Turn the filter cover lock (1) counterclockwise to the run position F - do not wash. the engine stops - As soon as the engine runs BG 86, SH 86 English Cleaning the Air Filter 295BA074 KN 3 N Blip the throttle trigger (3) - the stop switch to idle speed. the choke knob...
... 86, SH 86 C 17 Stopping the Engine. the engine returns to 0 - BG 56, BG 66, SH 56 295BA071 KN N Move the setting lever to the on position. 5 3 2 N Pull off the retainer (3) and take the filter (4) out of engine power 1 2 N Turn the filter cover lock (1) counterclockwise to the run position F - do not wash. the engine stops - As soon as the engine runs BG 86, SH 86 English Cleaning the Air Filter 295BA074 KN 3 N Blip the throttle trigger (3) - the stop switch to idle speed. the choke knob...
Product Instruction Manual
Page 20
... sea level. 18 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C With this carburetor it 1 full turn ) as far as stop. Standard Setting 295BA076 KN N Shut off the engine. N Turn high speed screw (H) counterclockwise (no more than a 3/4 turn . This setting provides an optimum fuel-air mixture under most operating conditions. N Refit the filter cover and turn the filter cover lock to adjust the high speed screw within fine limits. Fine Tuning for Operation in the filter housing...
... sea level. 18 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C With this carburetor it 1 full turn ) as far as stop. Standard Setting 295BA076 KN N Shut off the engine. N Turn high speed screw (H) counterclockwise (no more than a 3/4 turn . This setting provides an optimum fuel-air mixture under most operating conditions. N Refit the filter cover and turn the filter cover lock to adjust the high speed screw within fine limits. Fine Tuning for Operation in the filter housing...
Product Instruction Manual
Page 21
... idle setting is down on the insulator nose which may result in trouble in chapter "Starting / Stopping the Engine". N Remove spark plug as described in operation. BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 19 N Check the air filter and clean it if necessary. Engine stops while idling N Check the standard setting. N Clean dirty spark plug. English Checking the Spark Plug It is too lean: N Turn the low speed screw (L) slowly counterclockwise until the engine runs and...
... idle setting is down on the insulator nose which may result in trouble in chapter "Starting / Stopping the Engine". N Remove spark plug as described in operation. BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 19 N Check the air filter and clean it if necessary. Engine stops while idling N Check the standard setting. N Clean dirty spark plug. English Checking the Spark Plug It is too lean: N Turn the low speed screw (L) slowly counterclockwise until the engine runs and...
Product Instruction Manual
Page 22
... the muffler. Rewind Starter To help prolong the wear life of the guide bushing. operating at part load. Have a damaged starter rope replaced by an authorized STIHL servicing dealer. STIHL recommends that could ignite combustible fumes and cause a fire. 20 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C Unfavorable running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the...
... the muffler. Rewind Starter To help prolong the wear life of the guide bushing. operating at part load. Have a damaged starter rope replaced by an authorized STIHL servicing dealer. STIHL recommends that could ignite combustible fumes and cause a fire. 20 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C Unfavorable running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the...
Product Instruction Manual
Page 24
... a STIHL servicing dealer. 2) Not in muffler Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required Complete machine Visual inspection (condition, leaks) Clean x x x Control handle Check operation x x Air filter Clean Replace Filter in fuel tank Check Replace filter Fuel tank Clean Carburetor Check idle setting Readjust idle x x Spark plug Spark arresting screen2) in all versions, country-specific x x x x x x x x x x x x x x x x x x x x x 22 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH...
... a STIHL servicing dealer. 2) Not in muffler Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required Complete machine Visual inspection (condition, leaks) Clean x x x Control handle Check operation x x Air filter Clean Replace Filter in fuel tank Check Replace filter Fuel tank Clean Carburetor Check idle setting Readjust idle x x Spark plug Spark arresting screen2) in all versions, country-specific x x x x x x x x x x x x x x x x x x x x x 22 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH...
Product Instruction Manual
Page 26
... oil mixture. 12. Stop Switch (BG 56, BG 66, SH 56) Switches the machine off. 15. Suction Tube To be mounted on the blower. 22. Blower Tube Silencer (BG 66) Reduces blower noise. Filter Cover Lock Secures the filter cover. 10. Fan Nozzle Alternative nozzle for which is the device to start . 7. Carburetor Adjusting Screws For tuning carburetor. 6. Choke Lever Eases engine starting by the right hand. 14. Assist Handle Additional handle for cold start the engine. 5. Throttle Trigger Controls the speed...
... oil mixture. 12. Stop Switch (BG 56, BG 66, SH 56) Switches the machine off. 15. Suction Tube To be mounted on the blower. 22. Blower Tube Silencer (BG 66) Reduces blower noise. Filter Cover Lock Secures the filter cover. 10. Fan Nozzle Alternative nozzle for which is the device to start . 7. Carburetor Adjusting Screws For tuning carburetor. 6. Choke Lever Eases engine starting by the right hand. 14. Assist Handle Additional handle for cold start the engine. 5. Throttle Trigger Controls the speed...
Product Instruction Manual
Page 28
... free from the date of this unit should carry out only the maintenance operations described in some cases, by authorized STIHL service shops. Your emission control system includes parts such as the carburetor and the ignition system. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at the time of your small off -road equipment engines must be designed, built...
... free from the date of this unit should carry out only the maintenance operations described in some cases, by authorized STIHL service shops. Your emission control system includes parts such as the carburetor and the ignition system. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at the time of your small off -road equipment engines must be designed, built...
Product Instruction Manual
Page 29
... for damages to other engine components caused by STIHL Incorporated free of charge. Any manufacturer-approved or equivalent replacement part may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer. The following list specifically defines the emission-related warranted parts: BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 27 Owner's Warranty Responsibilities As the small...
... for damages to other engine components caused by STIHL Incorporated free of charge. Any manufacturer-approved or equivalent replacement part may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer. The following list specifically defines the emission-related warranted parts: BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 27 Owner's Warranty Responsibilities As the small...
Product Instruction Manual
Page 30
... The maintenance instructions in writing by STIHL Incorporated, and N replacement of fuel and oil may include parts such as: Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners. 28 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C Limitations This Emission Control Systems Warranty shall not cover any authorized STIHL servicing dealer...
... The maintenance instructions in writing by STIHL Incorporated, and N replacement of fuel and oil may include parts such as: Air filter, Carburetor, Purger, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners. 28 BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C Limitations This Emission Control Systems Warranty shall not cover any authorized STIHL servicing dealer...
Product Instruction Manual
Page 31
... exempted by STIHL Incorporated free of charge. The use of all applicable emission regulations. Any such part repaired or replaced under warranty must be repaired or replaced by CARB may deny you including diagnosis, parts and labor. Manufacturer's Warranty Responsabilities This emissions control system is warranted for presenting your equipment is designed, built and equipped, at no cost to you warranty coverage if your instruction manual. If...
... exempted by STIHL Incorporated free of charge. The use of all applicable emission regulations. Any such part repaired or replaced under warranty must be repaired or replaced by CARB may deny you including diagnosis, parts and labor. Manufacturer's Warranty Responsabilities This emissions control system is warranted for presenting your equipment is designed, built and equipped, at no cost to you warranty coverage if your instruction manual. If...
Product Instruction Manual
Page 32
... authorized STIHL servicing dealer or warranty station. 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 Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a claim for damages to the determination that a warranted part is in fact defective, provided that has a factory installed, and properly operating, adjustment limiting device is defective. Repair or replacement...
... authorized STIHL servicing dealer or warranty station. 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 Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a claim for damages to the determination that a warranted part is in fact defective, provided that has a factory installed, and properly operating, adjustment limiting device is defective. Repair or replacement...
