Product Instruction Manual
Page 3
...Precautions and Working Techniques" before using your STIHL power tool, it is important that you do not understand any of the instructions in Muffler 20 Spark Plug 21 Replacing the Starter Rope and Rewind ...Spring 22 Storing the Machine 25 Maintenance and Care 26 Main Parts 28 Specifications 29 Special Accessories 30 Maintenance and Repairs 30 STIHL Incorporated Federal Emission Control Warranty Statement 31 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 33 { KM 90...
...Precautions and Working Techniques" before using your STIHL power tool, it is important that you do not understand any of the instructions in Muffler 20 Spark Plug 21 Replacing the Starter Rope and Rewind ...Spring 22 Storing the Machine 25 Maintenance and Care 26 Main Parts 28 Specifications 29 Special Accessories 30 Maintenance and Repairs 30 STIHL Incorporated Federal Emission Control Warranty Statement 31 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 33 { KM 90...
Product Instruction Manual
Page 9
... other persons in the general work on a ladder or on the spark plug - Warning! Warning! To reduce the risk of you cannot set the correct idle speed, have your STIHL dealer check your power tool. Operate it properly. Work carefully. 002BA057 KN KM 90 R 7 Keep the handles clean and dry at starting instructions, see the...
... other persons in the general work on a ladder or on the spark plug - Warning! Warning! To reduce the risk of you cannot set the correct idle speed, have your STIHL dealer check your power tool. Operate it properly. Work carefully. 002BA057 KN KM 90 R 7 Keep the handles clean and dry at starting instructions, see the...
Product Instruction Manual
Page 10
... burn injury, keep the area around the muffler clean. To reduce the risk of the cylinder, spark plug) become hot during operation and remain hot for the type of the engine (e.g. Never modify your STIHL servicing dealer only. 8 KM 90 R You may be colorless and odorless. In the event of the gases (e.g. To reduce the...
... burn injury, keep the area around the muffler clean. To reduce the risk of the cylinder, spark plug) become hot during operation and remain hot for the type of the engine (e.g. Never modify your STIHL servicing dealer only. 8 KM 90 R You may be colorless and odorless. In the event of the gases (e.g. To reduce the...
Product Instruction Manual
Page 11
... and you make sure it must be attached.) A loose connection between spark plug boot and the ignition wire connector in good condition. Have such work not described in your KombiEngine and KombiTool instruction manuals. KM 90 R 9 Due to this process, the muffler does not cool down ...risk of fire from the catalytic reaction, these manuals. Warning! Always press spark plug boot snugly onto spark plug terminal of fire and burn injuries, the following specific safety precautions must be observed. Some STIHL power tools are always clean and in the boot may cause serious or fatal...
... and you make sure it must be attached.) A loose connection between spark plug boot and the ignition wire connector in good condition. Have such work not described in your KombiEngine and KombiTool instruction manuals. KM 90 R 9 Due to this process, the muffler does not cool down ...risk of fire from the catalytic reaction, these manuals. Warning! Always press spark plug boot snugly onto spark plug terminal of fire and burn injuries, the following specific safety precautions must be observed. Some STIHL power tools are always clean and in the boot may cause serious or fatal...
Product Instruction Manual
Page 20
...of engine power 4 1 2 N Turn the choke knob to engine temperature. see "Spark Plug". even if the bulb is cold. The engine develops its maximum power after about 5 to cool down firmly. 18 KM 90 R During Operation After a long period of ignition, until completely dry N After refueling..., allow the engine to STOP-0. Empty the fuel tank and keep the machine in period. N Fit a new filter element. N Refit the spark plug - As a temporary measure you need it down . Throttle cable adjustment N Check adjustment of cooling air. Do not wash. N Now start ...
...of engine power 4 1 2 N Turn the choke knob to engine temperature. see "Spark Plug". even if the bulb is cold. The engine develops its maximum power after about 5 to cool down firmly. 18 KM 90 R During Operation After a long period of ignition, until completely dry N After refueling..., allow the engine to STOP-0. Empty the fuel tank and keep the machine in period. N Fit a new filter element. N Refit the spark plug - As a temporary measure you need it down . Throttle cable adjustment N Check adjustment of cooling air. Do not wash. N Now start ...
Product Instruction Manual
Page 23
... unfavorable running conditions, e.g. These factors cause deposits to form on power, difficult to STOP-0. 1 A N Clean dirty spark plug. N Use only resistor type spark plugs of spark plug: - Unfavorable running conditions (mostly at part load. 249BA063 KN N Pull off the spark plug boot (1). KM 90 R 21 N Insert the screw and tighten it out. Too much engine oil in fuel mix. - N Unscrew...
... unfavorable running conditions, e.g. These factors cause deposits to form on power, difficult to STOP-0. 1 A N Clean dirty spark plug. N Use only resistor type spark plugs of spark plug: - Unfavorable running conditions (mostly at part load. 249BA063 KN N Pull off the spark plug boot (1). KM 90 R 21 N Insert the screw and tighten it out. Too much engine oil in fuel mix. - N Unscrew...
Product Instruction Manual
Page 24
... wire connector in direction of arrow h - Always press spark plug boot (1) snugly onto spark plug terminal (2) of fire and burn injury, use only spark plugs authorized by STIHL. to STOP-0. N Take out the screws (1). N Remove the starter cover (2) from the housing. 002BA363 KN 002BA178 KN 249BA061 KN 22 KM 90 R To reduce the risk of the proper size. (Note...
... wire connector in direction of arrow h - Always press spark plug boot (1) snugly onto spark plug terminal (2) of fire and burn injury, use only spark plugs authorized by STIHL. to STOP-0. N Take out the screws (1). N Remove the starter cover (2) from the housing. 002BA363 KN 002BA178 KN 249BA061 KN 22 KM 90 R To reduce the risk of the proper size. (Note...
Product Instruction Manual
Page 28
The specified intervals must be shortened accordingly when working for cooling air Valve clearance Combustion chamber Spark arresting screen in muffler Visual inspection (condition, leaks) X X clean X check operation X X clean replace Have checked by... X X X X X X X X X X X X X X KM 90 R Complete machine Control handle Air filter Fuel pick-up body in normal operating conditions. English Maintenance and Care The following maintenance intervals apply in fuel tank Fuel tank Carburetor Spark plug Intake port for longer than normal or under difficult cutting conditions...
The specified intervals must be shortened accordingly when working for cooling air Valve clearance Combustion chamber Spark arresting screen in muffler Visual inspection (condition, leaks) X X clean X check operation X X clean replace Have checked by... X X X X X X X X X X X X X X KM 90 R Complete machine Control handle Air filter Fuel pick-up body in normal operating conditions. English Maintenance and Care The following maintenance intervals apply in fuel tank Fuel tank Carburetor Spark plug Intake port for longer than normal or under difficult cutting conditions...
Product Instruction Manual
Page 30
English Main Parts 8 69 7 3 4 2 5 1 # 10 11 12 13 14 15 16 17 18 1 Fuel Filler Cap 2 Carburetor Adjusting Screws 3 Fuel Pump 4 Starter Grip 5 Muffler with Spark Arresting Screen 6 Coupling Sleeve 7 Wing Screw 8 Loop Handle 9 Barrier Bar 10 Carrying Ring 11 Slide Control 12 Throttle Trigger Lockout 13 Throttle Trigger 14 Spark Plug Boot 15 Choke Knob 16 Air Filter Cover 17 Fuel Tank 18 Machine Support # Serial Number 463BA004 KN 28 KM 90 R
English Main Parts 8 69 7 3 4 2 5 1 # 10 11 12 13 14 15 16 17 18 1 Fuel Filler Cap 2 Carburetor Adjusting Screws 3 Fuel Pump 4 Starter Grip 5 Muffler with Spark Arresting Screen 6 Coupling Sleeve 7 Wing Screw 8 Loop Handle 9 Barrier Bar 10 Carrying Ring 11 Slide Control 12 Throttle Trigger Lockout 13 Throttle Trigger 14 Spark Plug Boot 15 Choke Knob 16 Air Filter Cover 17 Fuel Tank 18 Machine Support # Serial Number 463BA004 KN 28 KM 90 R
Product Instruction Manual
Page 31
...trigger can be activated. 13 Throttle Trigger Controls the speed of the engine. 14 Spark Plug Boot Connects the spark plug with the ignition lead. 15 Choke Knob Eases engine starting and switches off the ... the unit to the harness. 11 Slide Control For starting the engine. 5 Muffler with mixture lubrication KM 90 R 29 Definitions 1 Fuel Filler Cap For closing the fuel tank. 2 Carburetor Adjusting Screws For tuning... 125 hours Moderate = 50 hours Engine STIHL one-cylinder, four-stroke engine with Spark Arresting Screen Muffler reduces exhaust noises and diverts exhaust gases away from operator....
...trigger can be activated. 13 Throttle Trigger Controls the speed of the engine. 14 Spark Plug Boot Connects the spark plug with the ignition lead. 15 Choke Knob Eases engine starting and switches off the ... the unit to the harness. 11 Slide Control For starting the engine. 5 Muffler with mixture lubrication KM 90 R 29 Definitions 1 Fuel Filler Cap For closing the fuel tank. 2 Carburetor Adjusting Screws For tuning... 125 hours Moderate = 50 hours Engine STIHL one-cylinder, four-stroke engine with Spark Arresting Screen Muffler reduces exhaust noises and diverts exhaust gases away from operator....
Product Instruction Manual
Page 32
... appear alone on small parts. 30 KM 90 R The symbol may be performed only by the STIHL part number, the { logo and, in (0.10 mm) Ignition system Special Accessories Contact your STIHL dealer for information regarding special accessories that may be available for your product. Electronic magneto ignition Spark plug (suppressed): Electrode gap: Bosch USR 7AC...
... appear alone on small parts. 30 KM 90 R The symbol may be performed only by the STIHL part number, the { logo and, in (0.10 mm) Ignition system Special Accessories Contact your STIHL dealer for information regarding special accessories that may be available for your product. Electronic magneto ignition Spark plug (suppressed): Electrode gap: Bosch USR 7AC...
Product Instruction Manual
Page 34
... based on emission-related parts and must be performed at and after the first scheduled replacement point. 32 KM 90 R Intake Manifold - Spark Plug - Fuel Cap - Limitations This Emission Control Systems Warranty shall not cover any authorized STIHL servicing dealer and present the signed warranty card. Diagnosis You, as required maintenance will be provided without...
... based on emission-related parts and must be performed at and after the first scheduled replacement point. 32 KM 90 R Intake Manifold - Spark Plug - Fuel Cap - Limitations This Emission Control Systems Warranty shall not cover any authorized STIHL servicing dealer and present the signed warranty card. Diagnosis You, as required maintenance will be provided without...
Product Instruction Manual
Page 35
...fail to conform to meet all receipts covering maintenance on or modified parts will be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to the owner. Add-on your instruction manual. In California, new equipment that your engine...KM 90 R 33 Coverage by STIHL Incorporated free of your small off -road equipment engine or a part has failed due to a STIHL servicing dealer as soon as : Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug...
...fail to conform to meet all receipts covering maintenance on or modified parts will be repaired or replaced by STIHL Incorporated STIHL Incorporated warrants to the owner. Add-on your instruction manual. In California, new equipment that your engine...KM 90 R 33 Coverage by STIHL Incorporated free of your small off -road equipment engine or a part has failed due to a STIHL servicing dealer as soon as : Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug...
Product Instruction Manual
Page 36
...part is still eligible for warranty coverage. 34 KM 90 R Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank,...of any warranty maintenance or repairs on emissions-related parts will be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that are authorized to service the subject engines...
...part is still eligible for warranty coverage. 34 KM 90 R Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank,...of any warranty maintenance or repairs on emissions-related parts will be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that are authorized to service the subject engines...