Instruction Manual
Page 2
... 17 Starting / Stopping the Engine ........ 18 Operating Instructions 21 Cleaning the Air Filter 21 Motor Management 21 Adjusting the Carburetor 22 Spark Arresting Screen in USA Printed on page 4, before using your power tool. Printed in Muffler ... 23 Checking... 30 Specifications 32 Special Accessories 32 Maintenance and Repairs 33 STIHL Incorporated Federal Emission Control Warranty Statement 34 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 36 Trademarks 39 STIHl KM 90, KM 90 R English / USA Allow only persons who understand the ...
... 17 Starting / Stopping the Engine ........ 18 Operating Instructions 21 Cleaning the Air Filter 21 Motor Management 21 Adjusting the Carburetor 22 Spark Arresting Screen in USA Printed on page 4, before using your power tool. Printed in Muffler ... 23 Checking... 30 Specifications 32 Special Accessories 32 Maintenance and Repairs 33 STIHL Incorporated Federal Emission Control Warranty Statement 34 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 36 Trademarks 39 STIHl KM 90, KM 90 R English / USA Allow only persons who understand the ...
Instruction Manual
Page 17
... exceed 3 months of empty mixing-oil canisters only at authorized disposal locations. 16 KM 90, KM 90 R Fuel mix ages Only mix sufficient fuel for use in STlHL engines. 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 storage. Use mid-grade unleaded gasoline with the fuel. The chemical composition of the oil with a minimum octane rating of piston seizure and damage to the engine. Some fuel additives not only detrimentally affect elastomers (carburetor...
... exceed 3 months of empty mixing-oil canisters only at authorized disposal locations. 16 KM 90, KM 90 R Fuel mix ages Only mix sufficient fuel for use in STlHL engines. 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 storage. Use mid-grade unleaded gasoline with the fuel. The chemical composition of the oil with a minimum octane rating of piston seizure and damage to the engine. Some fuel additives not only detrimentally affect elastomers (carburetor...
Instruction Manual
Page 21
and the engine settles down to idle speed. : Open the throttle part way and warm up engine for operation. Make sure the carburetor is idling. the slide control moves to STOP-O. Throttle cable adjustment : Check adjustment of the arrow on the stop symbol ( ) to the run position # -... machine is now ready for a brief period. Unscrew and dry off the spark plug boot (10). :. If the engine does not start the engine 20 KM 90, KM 90 R English / USA : Crank engine until dry : After refueling, press the fuel pump bulb at least five times - After no more than five attempts, ...
and the engine settles down to idle speed. : Open the throttle part way and warm up engine for operation. Make sure the carburetor is idling. the slide control moves to STOP-O. Throttle cable adjustment : Check adjustment of the arrow on the stop symbol ( ) to the run position # -... machine is now ready for a brief period. Unscrew and dry off the spark plug boot (10). :. If the engine does not start the engine 20 KM 90, KM 90 R English / USA : Crank engine until dry : After refueling, press the fuel pump bulb at least five times - After no more than five attempts, ...
Instruction Manual
Page 22
... after about 5 to cool down firmly. 266BA009 KN Exhaust emissions are greater during the break-in period. KM 90, KM 90 R 21 After finishing work Wait for the first three tank fillings. This protects enginemounted components (ignition, carburetor) from around the filter. : Grip the filter element (3) at regular intervals and retighten as necessary. 4 1 2 Dirty air...
... after about 5 to cool down firmly. 266BA009 KN Exhaust emissions are greater during the break-in period. KM 90, KM 90 R 21 After finishing work Wait for the first three tank fillings. This protects enginemounted components (ignition, carburetor) from around the filter. : Grip the filter element (3) at regular intervals and retighten as necessary. 4 1 2 Dirty air...
Instruction Manual
Page 23
Fine Tuning A slight correction of the setting of thumb Rotate the high speed screw (H) about 3 minutes. 22 KM 90, KM 90 R Rule of the high speed screw (H) may be necessary if engine power is only possible to adjust the engine idle speed within fine limits. 266BA008...warm up the engine. : Adjust idle speed with the idle speed screw (LA) so that the tool does not move. English / USA Adjusting the Carburetor The carburetor comes from the factory with the attachment mounted. : Check the air filter and replace if necessary. : Check adjustment of throttle cable and readjust if necessary...
Fine Tuning A slight correction of the setting of thumb Rotate the high speed screw (H) about 3 minutes. 22 KM 90, KM 90 R Rule of the high speed screw (H) may be necessary if engine power is only possible to adjust the engine idle speed within fine limits. 266BA008...warm up the engine. : Adjust idle speed with the idle speed screw (LA) so that the tool does not move. English / USA Adjusting the Carburetor The carburetor comes from the factory with the attachment mounted. : Check the air filter and replace if necessary. : Check adjustment of throttle cable and readjust if necessary...
Instruction Manual
Page 29
...with local environmental requirements. : Run the engine until the carburetor is dry - this is not the case, the spring is overtensioned and could break. Inspections and Maintenance by authorized STIHL dealers. 28 KM 90, KM 90 R out of the reach of children and other unauthorized ...persons. If this helps prevent the carburetor diaphragms sticking together. : Thoroughly clean the machine - clean and inspect it...
...with local environmental requirements. : Run the engine until the carburetor is dry - this is not the case, the spring is overtensioned and could break. Inspections and Maintenance by authorized STIHL dealers. 28 KM 90, KM 90 R out of the reach of children and other unauthorized ...persons. If this helps prevent the carburetor diaphragms sticking together. : Thoroughly clean the machine - clean and inspect it...
Instruction Manual
Page 30
...etc.), shorten the specified intervals accordingly Complete machine Control handle Air filter Pick-up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Valve clearance Combustion chamber Spark arresting screen* in muffler All accessible screws and nuts (not ... Clean X Check operation X X Clean Replace Have checked by dealer1) Have replaced by dealer1) replace 1) STIHL recommends the STIHL dealer * see "Guide to Using this Manual" KM 90, KM 90 R before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem...
...etc.), shorten the specified intervals accordingly Complete machine Control handle Air filter Pick-up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Valve clearance Combustion chamber Spark arresting screen* in muffler All accessible screws and nuts (not ... Clean X Check operation X X Clean Replace Have checked by dealer1) Have replaced by dealer1) replace 1) STIHL recommends the STIHL dealer * see "Guide to Using this Manual" KM 90, KM 90 R before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem...
Instruction Manual
Page 31
English / USA Parts and Controls 30 1 Fuel Filler Cap 2 Carburetor Adjusting Screws 3 Starter Grip 4 Spark Plug Boot 5 Muffler (with spark arresting screen*) 6 Bike Handle 7 Throttle Trigge 8 Slide Control 9 Throttle Trigger Interlock 10 Throttle Cable Retainer 11 Clamp (carrying ring) 12 Fuel Pump 13 Choke Knob 14 Air Filter Cover 15 Fuel Tank 16 Machine Support 17 Handle Support 18 Wing Screw 19 Loop Handle 20 Barrier Bar 21 Coupling Sleeve 22 Wing Screw # Serial number * see "Guide to Using this Manual" KM 90, KM 90 R
English / USA Parts and Controls 30 1 Fuel Filler Cap 2 Carburetor Adjusting Screws 3 Starter Grip 4 Spark Plug Boot 5 Muffler (with spark arresting screen*) 6 Bike Handle 7 Throttle Trigge 8 Slide Control 9 Throttle Trigger Interlock 10 Throttle Cable Retainer 11 Clamp (carrying ring) 12 Fuel Pump 13 Choke Knob 14 Air Filter Cover 15 Fuel Tank 16 Machine Support 17 Handle Support 18 Wing Screw 19 Loop Handle 20 Barrier Bar 21 Coupling Sleeve 22 Wing Screw # Serial number * see "Guide to Using this Manual" KM 90, KM 90 R
Instruction Manual
Page 32
... start . 13. Wing Screw Secures the lower part of the pull starter, which is the device to the lower part of operator. 21. Carburetor Adjusting Screws For tuning the carburetor. 3. Spark Plug Boot Connects the spark plug to the harness. 12. Wing Screw Locks handlebar in selected position. 19. Muffler (with both... of the machine with spark arresting screen) Reduces exhaust noises and diverts exhaust gases away from operator. 6. Keeps the throttle partially open during operation. 20. KM 90, KM 90 R 31
... start . 13. Wing Screw Secures the lower part of the pull starter, which is the device to the lower part of operator. 21. Carburetor Adjusting Screws For tuning the carburetor. 3. Spark Plug Boot Connects the spark plug to the harness. 12. Wing Screw Locks handlebar in selected position. 19. Muffler (with both... of the machine with spark arresting screen) Reduces exhaust noises and diverts exhaust gases away from operator. 6. Keeps the throttle partially open during operation. 20. KM 90, KM 90 R 31
Instruction Manual
Page 35
...carburetor and the ignition system. Where a warrantable condition exists, STIHL Incorporated will be free from the date of sale, to exceed 30 days. The equipment engine must warrant the emission control system on your small off -road equipment engine owner, you can write to STIHL. 34 KM 90, KM 90... R Environmental Protection Agency (EPA) and STIHL Incorporated are warranted for the period of time listed below provided there has been no cost to explain...
...carburetor and the ignition system. Where a warrantable condition exists, STIHL Incorporated will be free from the date of sale, to exceed 30 days. The equipment engine must warrant the emission control system on your small off -road equipment engine owner, you can write to STIHL. 34 KM 90, KM 90... R Environmental Protection Agency (EPA) and STIHL Incorporated are warranted for the period of time listed below provided there has been no cost to explain...
Instruction Manual
Page 36
...Emission Control Systems Warranty shall not cover any of a warranted part still under warranty. Diagnosis You, as non-defective, STIHL Incorporated will be used for the warranty period. Any manufacturer-approved or equivalent replacement part may require shorter maintenance intervals. ... 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 applicable) Fasteners Where to make a claim for regular inspection to the owner. KM 90, KM 90 R 35
...Emission Control Systems Warranty shall not cover any of a warranted part still under warranty. Diagnosis You, as non-defective, STIHL Incorporated will be used for the warranty period. Any manufacturer-approved or equivalent replacement part may require shorter maintenance intervals. ... 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 applicable) Fasteners Where to make a claim for regular inspection to the owner. KM 90, KM 90 R 35
Instruction Manual
Page 37
... Warranty Rights and Obligations The California Air Resources Board (CARB) and STIHL Incorporated are responsible for presenting your small off-road equipment engine to a STIHL Service center as soon as : Air filter, Carburetor, Purger, Choke (Cold start enrichment system), Control Linkages, Intake Manifold... or your Instruction manual. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of two years. 36 KM 90, KM 90 R Box 2015, Virginia Beach, VA 23450-2015. If you have any emissions-related part on...
... Warranty Rights and Obligations The California Air Resources Board (CARB) and STIHL Incorporated are responsible for presenting your small off-road equipment engine to a STIHL Service center as soon as : Air filter, Carburetor, Purger, Choke (Cold start enrichment system), Control Linkages, Intake Manifold... or your Instruction manual. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of two years. 36 KM 90, KM 90 R Box 2015, Virginia Beach, VA 23450-2015. If you have any emissions-related part on...
Instruction Manual
Page 39
... of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that has a factory installed, and properly...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 warranty coverage. 38 KM 90, KM 90...
... of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that has a factory installed, and properly...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 warranty coverage. 38 KM 90, KM 90...