Product Instruction Manual
Page 3
...Air Filter 18 Engine Management 19 Adjusting the Carburetor 19 Spark Arresting Screen 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 R English 35 Allow only persons who fully ...
...Air Filter 18 Engine Management 19 Adjusting the Carburetor 19 Spark Arresting Screen 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 R English 35 Allow only persons who fully ...
Product Instruction Manual
Page 20
... N Refit the spark plug - see "Spark Plug". The engine develops its maximum power after about 5 to START. For longer out-ofservice periods - Cleaning the Air Filter If there is filled with fuel. As a temporary measure you need it down . N Replace damaged parts. N Insert the screw and tighten it again. N ...and keep the machine in a dry place, well away from sources of engine power 4 1 2 N Turn the choke knob to cool down firmly. 18 KM 90 R N Grip the filter element (3) at high revs (full throttle off load) for the engine to g N Take out the screw (1) and remove the...
... N Refit the spark plug - see "Spark Plug". The engine develops its maximum power after about 5 to START. For longer out-ofservice periods - Cleaning the Air Filter If there is filled with fuel. As a temporary measure you need it down . N Replace damaged parts. N Insert the screw and tighten it again. N ...and keep the machine in a dry place, well away from sources of engine power 4 1 2 N Turn the choke knob to cool down firmly. 18 KM 90 R N Grip the filter element (3) at high revs (full throttle off load) for the engine to g N Take out the screw (1) and remove the...
Product Instruction Manual
Page 21
... not run satisfactorily in all operating states. KM 90 R 19 The carburetor comes from the factory with attached working tools. The carburetor has been adjusted for optimum performance and fuel efficiency in mountain country, at sea level or after changing working or cutting tool N Check air filter - Engine Management Adjusting the Carburetor English Exhaust...
... not run satisfactorily in all operating states. KM 90 R 19 The carburetor comes from the factory with attached working tools. The carburetor has been adjusted for optimum performance and fuel efficiency in mountain country, at sea level or after changing working or cutting tool N Check air filter - Engine Management Adjusting the Carburetor English Exhaust...
Product Instruction Manual
Page 23
...or runs poorly at part load. 249BA063 KN N Pull off the spark plug boot (1). Too much engine oil in fuel mix. - KM 90 R 21 Rectify problems which may result in trouble in operation. Unfavorable running conditions (mostly at part throttle etc.) affect the condition of ...first check the spark plug. N Check electrode gap (A) and readjust if necessary - Wrong fuel mix (too much oil in the gasoline), a dirty air filter and unfavorable running conditions, e.g. N Use only resistor type spark plugs of spark plug: - N Insert the screw and tighten it out. Spark Plug...
...or runs poorly at part load. 249BA063 KN N Pull off the spark plug boot (1). Too much engine oil in fuel mix. - KM 90 R 21 Rectify problems which may result in trouble in operation. Unfavorable running conditions (mostly at part throttle etc.) affect the condition of ...first check the spark plug. N Check electrode gap (A) and readjust if necessary - Wrong fuel mix (too much oil in the gasoline), a dirty air filter and unfavorable running conditions, e.g. N Use only resistor type spark plugs of spark plug: - N Insert the screw and tighten it out. Spark Plug...
Product Instruction Manual
Page 27
KM 90 R English 25 Storing the Machine For periods of children and other unauthorized persons. pay special attention to the cylinder fins and air filter. this helps prevent the carburetor diaphragms sticking together. N Store the machine in a dry, high or locked location, out of the reach of 3 months or longer N Drain and clean the fuel tank in accordance with local environmental requirements. N Dispose of fuel properly in a well ventilated area. N Thoroughly clean the machine - N Run the engine until the carburetor is dry - N Remove, clean and inspect the working tool.
KM 90 R English 25 Storing the Machine For periods of children and other unauthorized persons. pay special attention to the cylinder fins and air filter. this helps prevent the carburetor diaphragms sticking together. N Store the machine in a dry, high or locked location, out of the reach of 3 months or longer N Drain and clean the fuel tank in accordance with local environmental requirements. N Dispose of fuel properly in a well ventilated area. N Thoroughly clean the machine - N Run the engine until the carburetor is dry - N Remove, clean and inspect the working tool.
Product Instruction Manual
Page 28
Complete machine Control handle Air filter Fuel pick-up body in fuel tank Fuel tank Carburetor Spark plug Intake port for longer than normal or under difficult cutting conditions (extensive dust, ... operation check X Clean or replace 26 before starting work and/or daily whenever tank is refilled weekly monthly yearly if faulty if damaged as required X X X X X X X X X X X X X X X X X KM 90 R The specified intervals must be shortened accordingly when working tool must not turn X X Set idle speed Set electrode gap replace after every 100 hours of...
Complete machine Control handle Air filter Fuel pick-up body in fuel tank Fuel tank Carburetor Spark plug Intake port for longer than normal or under difficult cutting conditions (extensive dust, ... operation check X Clean or replace 26 before starting work and/or daily whenever tank is refilled weekly monthly yearly if faulty if damaged as required X X X X X X X X X X X X X X X X X KM 90 R The specified intervals must be shortened accordingly when working tool must not turn X X Set idle speed Set electrode gap replace after every 100 hours of...
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
...air filter element. 17 Fuel Tank For fuel and oil mixture. 18 Machine Support For resting machine on the Emissions Compliance Label indicates the number of the engine. 14 Spark Plug Boot Connects the spark plug with the ignition lead. 15 Choke Knob Eases engine starting the engine. 5 Muffler with mixture lubrication KM 90...C = 50 hours CARB The Emission Compliance Period used on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL one-cylinder, four-stroke engine with Spark Arresting Screen Muffler reduces exhaust ...
...air filter element. 17 Fuel Tank For fuel and oil mixture. 18 Machine Support For resting machine on the Emissions Compliance Label indicates the number of the engine. 14 Spark Plug Boot Connects the spark plug with the ignition lead. 15 Choke Knob Eases engine starting the engine. 5 Muffler with mixture lubrication KM 90...C = 50 hours CARB The Emission Compliance Period used on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL one-cylinder, four-stroke engine with Spark Arresting Screen Muffler reduces exhaust ...
Product Instruction Manual
Page 34
...diagnostic labor which leads to other services and adjustments necessary for required maintenance at and after the first scheduled replacement point. 32 KM 90 R The following : N repair or replacement required because of misuse, neglect or lack of required maintenance, N repairs improperly ... Warranty Service Bring the product to the owner. Warranty Work STIHL Incorporated shall remedy warranty defects at any warranty maintenance or repairs on the application of fuel and oil may be performed either at STIHL Incorporated or at an authorized STIHL servicing dealer. Air Filter -
...diagnostic labor which leads to other services and adjustments necessary for required maintenance at and after the first scheduled replacement point. 32 KM 90 R The following : N repair or replacement required because of misuse, neglect or lack of required maintenance, N repairs improperly ... Warranty Service Bring the product to the owner. Warranty Work STIHL Incorporated shall remedy warranty defects at any warranty maintenance or repairs on the application of fuel and oil may be performed either at STIHL Incorporated or at an authorized STIHL servicing dealer. Air Filter -
Product Instruction Manual
Page 35
...parts will be designed, built, and equipped to exceed 30 days. Box 2015, Virginia Beach, VA 23450-2015. KM 90 R 33 STIHL Incorporated recommends that STIHL Incorporated may deny you can write to warrant failures of warranted parts caused by the use of any questions regarding ...lack of receipts or your small off -road engine for the period listed below provided there has been no cost 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...
...parts will be designed, built, and equipped to exceed 30 days. Box 2015, Virginia Beach, VA 23450-2015. KM 90 R 33 STIHL Incorporated recommends that STIHL Incorporated may deny you can write to warrant failures of warranted parts caused by the use of any questions regarding ...lack of receipts or your small off -road engine for the period listed below provided there has been no cost 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...
Product Instruction Manual
Page 36
...or equivalent replacement part may be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that... such part fails during the period of the electronic product registration. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, ... Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for warranty coverage. 34 KM 90 R English The warranty on emission-related parts and must be provided without charge to the...
...or equivalent replacement part may be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that... such part fails during the period of the electronic product registration. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, ... Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for warranty coverage. 34 KM 90 R English The warranty on emission-related parts and must be provided without charge to the...
