TABLE OF CONTENTS Stopping, parking..........22 TABLE OF CONTENTS MEANS OF REPRESENTATION ........4 Transport ............22 Symbols used ........... 4 Refueling ............23 Formats used............ 4 SERVICE SCHEDULE ..........24 SAFETY ADVICE............5 Service schedule..........24 Use definition - intended use ......5 Service work (as additional order) .....
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TABLE OF CONTENTS 16 MAINTENANCE WORK ON THE ENGINE ..... 72 11.31 Removing the fuel tank ....... 44 16.1 Checking the gear oil level ....... 72 11.32 Installing the fuel tank ........ 45 16.2 Changing the gear oil ........72 11.33 Checking for chain dirt accumulation ....
All work marked with this symbol requires specialist knowledge and technical understanding. In the interest of your own safety, have these jobs performed by an authorized KTM workshop. There, your motorcycle will be opti- mally cared for by specially trained experts using the specialist tools required.
SAFETY ADVICE Use definition - intended use KTM sport motorcycles are designed and built to withstand the normal stresses and strains of competitive use. The motorcycles com- ply with currently valid regulations and categories of the top international motorsport organizations.
Keep the Owner's Manual in an accessible place to enable you to refer to it as needed. If you would like to know more about the vehicle or have questions on the material you read, please contact an authorized KTM dealer.
Guarantee, warranty The work prescribed in the service schedule must be carried out by an authorized KTM workshop only and confirmed in the customer's service record and in the KTM dealer.net; otherwise, all warranty claims will be void. No warranty claims can be considered for damage resulting from manipulations and/or alterations to the vehicle.
VIEW OF VEHICLE View of vehicle, front left (example) L00009-10 Hand brake lever ( p. 11) Kill switch ( p. 11) Clutch lever ( p. 11) Air filter box lid Fuel tap Choke ( p. 13) Shift lever ( p. 13) Chain guide...
VIEW OF VEHICLE View of vehicle, rear right (example) L00019-10 Filler cap Throttle grip ( p. 11) Fork rebound setting Shock absorber rebound adjustment Level viewer for brake fluid, rear Shock absorber compression adjustment Kick starter ( p. 13) Foot brake lever ( p.
SERIAL NUMBERS Chassis number Chassis number is stamped on the right side of the steering head. L00011-10 Type label Type label is located on the front frame tube. C00280-10 Engine number Engine number is stamp into the engine case below the carburetor. L00012-10 Fork part number Fork part number...
CONTROLS Clutch lever Clutch lever is fitted on the left side of the handlebar. The clutch is hydraulically operated and self-adjusting. L00016-10 Hand brake lever Hand brake lever is located on the right side of the handlebar. The front brake is engaged using the hand brake lever. L00017-10 Throttle grip Throttle grip...
CONTROLS Warning Danger of poisoning Fuel is poisonous and a health hazard. – Avoid contact between fuel and skin, eyes and clothing. Do not inhale fuel vapors. If fuel gets into your eyes, rinse immedi- ately with water and contact a doctor. Wash affected skin areas immediately with soap and water. If fuel is swallowed, con- tact a doctor immediately.
CONTROLS Choke Choke lever is fitted on the left side of the carburetor. Activating the choke function frees an opening in the carburetor through which the engine can draw extra fuel. This creates a richer fuel-air mixture, as is required for a cold start.
CONTROLS 6.12 Plug-in stand The fixture for plug-in stand is located on the frame on the left side of the vehicle. The plug-in stand is used to park the motorcycle. Info Remove the plug-in stand before riding. L00022-10...
When using your motorcycle, remember that others may feel disturbed by excessive noise. – Make sure that the pre-delivery inspection work has been carried out by an authorized KTM workshop. You receive a delivery certificate and the service record at vehicle handover.
PREPARING FOR USE – Accustom your child to the handling of the motorcycle on suitable terrain, preferably on a large open meadow. Info To give your child a feel for the brake system, you should push your child at first. Do not start the engine until your child is able to apply the necessary front brake pressure.
Info See the KTM PowerParts fitting instructions. – Adjust the carburetor jetting and the setting. Info B00436-01 Your authorized KTM workshop can recommend the right carburetor tuning. – Clean the chain. Chain cleaner ( p. 87) – Fit the steel sprocket.
Info See the KTM PowerParts fitting instructions. – Adjust the carburetor jetting and the setting. Info B00437-01 Your authorized KTM workshop can recommend the right carburetor tuning. – Clean the chain. Chain cleaner ( p. 87) – Fit the steel sprocket.
Fit a rain cover on the air filter. Waterproofing device for air filter (59006021000) Info See the KTM PowerParts fitting instructions. – Adjust the carburetor jetting and the setting. Info B00437-01 Your authorized KTM workshop can recommend the right carburetor tuning.
RIDING INSTRUCTIONS Checks and maintenance work when preparing for use Info Before riding the vehicle, always check its condition and operating safety. The vehicle must be in perfect technical condition when used. – Check the gear oil level. ( p. 72) –...
Do not change into a low gear at high engine speed. The engine races and the rear wheel can lock up. Info If you hear unusual noises while riding, stop immediately, switch off the engine, and contact an authorized KTM workshop. First gear is used for starting off or for steep inclines.
RIDING INSTRUCTIONS Stopping, parking Warning Risk of misappropriation Usage by unauthorized persons. – Never leave the vehicle while the engine is running. Secure the vehicle against use by unauthorized persons. Warning Danger of burns Some vehicle components become very hot when the vehicle is operated. –...
RIDING INSTRUCTIONS Refueling Danger Fire hazard Fuel is highly flammable. – Never refuel the vehicle near open flames or burning cigarettes, and always switch off the engine first. Be careful that no fuel is spilt, especially on hot vehicle components. Clean up spilt fuel immediately. –...
• Final check: Check the vehicle for safe operation and take a test ride. • • • Make the service entry in KTM DEALER.NET and in the service record. • • • S10A: Every 10 operating hours S10N: Once after 10 operating hours...
SERVICE SCHEDULE S40A: Every 40 operating hours Service work (as additional order) S40A S80A • Change the front brake fluid. • Change the rear brake fluid. • Change the hydraulic clutch fluid. p. 51) • Grease the steering head bearing. p.
Caution Danger of accidents Disassembly of pressurized parts can lead to injury. – The shock absorber is filled with high density nitrogen. Adhere to the description provided. (Your authorized KTM workshop will be glad to help.) Info The low-speed setting can be seen during the slow to normal compression of the shock absorber.
Caution Danger of accidents Disassembly of pressurized parts can lead to injury. – The shock absorber is filled with high density nitrogen. Adhere to the description provided. (Your authorized KTM workshop will be glad to help.) Info The high-speed setting can be seen during the fast compression of the shock absorber.
TUNING THE CHASSIS 10.6 Measuring rear wheel sag unloaded Preparatory work – Raise the motorcycle with the lift stand. ( p. 32) Main work – Measure the distance – as vertically as possible – between the rear axle and a fixed point such as a mark on the side cover.
Adjusting the spring preload of the shock absorber Caution Danger of accidents Disassembly of pressurized parts can lead to injury. – The shock absorber is filled with high density nitrogen. Adhere to the description provided. (Your authorized KTM workshop will be glad to help.) Preparatory work –...
TUNING THE CHASSIS – Check the riding sag of the shock absorber. ( p. 28) – Adjust the rebound damping of the shock absorber. ( p. 27) 10.11 Checking the basic setting of the fork Info For various reasons, no exact riding sag can be determined for the forks. –...
TUNING THE CHASSIS Info Turn clockwise to increase damping; turn counterclockwise to reduce damp- ing. 10.14 Handlebar position On the upper triple clamp, there are two holes at a distance of to each other. Hole distance A 15 mm (0.59 in) The holes on the handlebar support are placed at a distance of from the center.
SERVICE WORK ON THE CHASSIS 11.1 Raising the motorcycle with the lift stand Note Danger of damage The parked vehicle may roll away or fall over. – Always place the vehicle on a firm and even surface. – Raise the motorcycle at the frame underneath the engine. Lift stand (59229055000) The wheels must no longer touch the ground.
SERVICE WORK ON THE CHASSIS 11.4 Cleaning the dust boots of the fork legs Preparatory work – Raise the motorcycle with the lift stand. ( p. 32) Main work – Push dust boots of both fork legs downwards. Info The dust boots remove dust and coarse dirt particles from the inside fork tubes.
– Remove screws and take off the brake caliper. – Allow the brake caliper and brake line to hang tension-free to the side. (85 SX 19/16) – Remove screws and spacers and take off the brake caliper. – Allow the brake caliper and brake line to hang tension-free to the side.
25 Nm Loctite ® 243™ (18.4 lbf ft) – Position the brake line. Mount the clamp and screws (85 SX 19/16) – Position the brake caliper with spacers and fit and tighten screws L00047-11 Guideline Screw of brake caliper 25 Nm Loctite ®...
SERVICE WORK ON THE CHASSIS 11.10 Installing the lower triple clamp Main work – Clean the bearing and sealing elements, check for damage, and grease. High viscosity grease ( p. 87) – Insert the lower triple clamp with the steering stem. Mount the upper steering head bearing.
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Loctite ® 243™ (18.4 lbf ft) – Position the brake line and clamp. Mount and tighten screws (85 SX 19/16) – Position the brake caliper with spacers and fit and tighten screws L00047-12 Guideline Screw of brake caliper 25 Nm Loctite ®...
Danger of accidents Unstable vehicle handling from incorrect steering head bearing play. – Adjust the steering head bearing play without delay. (Your authorized KTM workshop will be glad to help.) Info If the bike is ridden with play in the steering head bearing, the bearing and the bearing seats in the frame can become dam- aged over time.
SERVICE WORK ON THE CHASSIS 11.13 Greasing the steering head bearing – Remove the lower triple clamp. p. 35) – Install the lower triple clamp. p. 36) 800010-10 11.14 Removing the start number plate – Remove screw and take off the clamp. –...
SERVICE WORK ON THE CHASSIS 11.18 Removing the shock absorber Preparatory work – Raise the motorcycle with the lift stand. ( p. 32) Main work – Remove screw and lower the rear wheel with the swing arm as far as possible without blocking the rear wheel.
SERVICE WORK ON THE CHASSIS – Mount and tighten screw of the seat fixing. Guideline Remaining screws, chassis 10 Nm (7.4 lbf ft) L00052-10 11.22 Removing the air filter box lid – Pull off the air filter box lid in area sideways and remove it toward the front.
SERVICE WORK ON THE CHASSIS 11.25 Installing the air filter Main work – Mount the clean air filter onto the air filter support. – Apply grease to the air filter around area Long-life grease ( p. 87) 301262-10 – Put in both parts together, position them and fix them with air filter holder The arrow of the UP marking points upward.
SERVICE WORK ON THE CHASSIS 11.27 Sealing the air filter box – Seal the air filter box in marked area 401527-10 11.28 Removing the main silencer Warning Danger of burns The exhaust system gets very hot when the vehicle is driven. –...
SERVICE WORK ON THE CHASSIS Main work – Remove screws . Remove protection cap with O-ring and outer tube – Pull glass fiber yarn filling from the inner tube. – Clean the parts that are to be reinstalled. – Mount new glass fiber yarn filling on the inner tube.
SERVICE WORK ON THE CHASSIS 11.32 Installing the fuel tank Danger Fire hazard Fuel is highly flammable. – Never refuel the vehicle near open flames or burning cigarettes, and always switch off the engine first. Be careful that no fuel is spilt, especially on hot vehicle components. Clean up spilt fuel immediately. –...
SERVICE WORK ON THE CHASSIS Warning Environmental hazard Hazardous substances cause environmental damage. – Oil, grease, filters, fuel, cleaners, brake fluid, etc., should be disposed of as stipulated in applicable regulations. Info The service life of the chain depends largely on its maintenance. –...
SERVICE WORK ON THE CHASSIS Main work – Loosen nut – Loosen nuts – Adjust the chain tension by turning adjusting screws on the left and right. Guideline Chain tension 5… 8 mm (0.2… 0.31 in) Turn adjusting screws on the left and right so that the markings on the left and right chain adjusters are in the same position relative to reference marks The rear wheel is then correctly aligned.
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SERVICE WORK ON THE CHASSIS – Check the chain sliding guard for wear. » If the lower edge of the chain pins is in line with or below the chain sliding guard: – Change the chain sliding guard. – Check the chain sliding guard for tightness. »...
If the frame exhibits cracking or deformation due to a mechanical impact: – Change the frame. Info A frame that has been damaged due to a mechanical impact must always be changed. Repair of the frame is not authorized by KTM. 401542-01 11.40 Checking the swingarm –...
SERVICE WORK ON THE CHASSIS Finishing work – Install the fuel tank. p. 45) – Mount the seat. ( p. 40) 11.42 Checking the rubber grip – Check the rubber grips on the handlebar for damage and wear and to ensure they are firmly seated.
SERVICE WORK ON THE CHASSIS 11.46 Correcting the fluid level of the hydraulic clutch Info The fluid level rises with increasing wear of the clutch facing discs. – Move the clutch fluid reservoir mounted on the handlebar to a horizontal position. –...
Danger of accidents Reduced braking efficiency due to worn brake disc(s). – Change the worn brake disc(s) without delay. (Your authorized KTM workshop will be glad to help.) – Check the thickness of the front and rear brake discs at several places on the disk...
Warning Danger of accidents Reduced braking efficiency due to old brake fluid. – Change the brake fluid of the front and rear brake according to the service schedule. (Your authorized KTM workshop will be glad to help.) – Move the brake fluid reservoir mounted on the handlebar to a horizontal position.
Warning Danger of accidents Reduced braking efficiency due to old brake fluid. – Change the brake fluid of the front and rear brake according to the service schedule. (Your authorized KTM workshop will be glad to help.) Warning Danger of accidents Reduced braking efficiency due to oil or grease on the brake discs.
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Carefully pull the brake caliper backwards from the brake disc. – Press the brake piston back to its basic position and make sure that no brake fluid overflows from the brake fluid reservoir. (85 SX 19/16) – Remove screws and spacers.
Loctite ® 243™ (18.4 lbf ft) – Remove the fixation of the hand brake lever. (85 SX 19/16) – Position the brake caliper. Mount screws with the spacers but do not tighten yet. – Operate the hand brake lever several times until the brake linings are lying cor- rectly against the brake disc and there is a pressure point.
Warning Danger of accidents Reduced braking efficiency due to old brake fluid. – Change the brake fluid of the front and rear brake according to the service schedule. (Your authorized KTM workshop will be glad to help.) – Stand the vehicle upright.
Warning Danger of accidents Reduced braking efficiency due to old brake fluid. – Change the brake fluid of the front and rear brake according to the service schedule. (Your authorized KTM workshop will be glad to help.) Warning Environmental hazard Hazardous substances cause environmental damage.
Warning Danger of accidents Reduced braking efficiency due to old brake fluid. – Change the brake fluid of the front and rear brake according to the service schedule. (Your authorized KTM workshop will be glad to help.) Warning Danger of accidents Reduced braking efficiency due to oil or grease on the brake discs.
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BRAKE SYSTEM – Position the brake linings. Info Always change the brake linings in pairs. L00091-10 – Position retainer spring – Mount bolt Guideline Rear brake bolt 12 Nm (8.9 lbf ft) – Mount spring connector Info To make it easier to mount the bolt, push the retainer spring down. Make sure the retainer spring is seated correctly.
WHEELS, TIRES 13.1 Removing the front wheel Preparatory work – Raise the motorcycle with the lift stand. ( p. 32) Main work – Remove screw – Release screws L00092-10 – Holding the front wheel, withdraw the wheel spindle. Take the front wheel out of the fork.
WHEELS, TIRES – Pull the front wheel brake and push down hard on the fork several times to align the fork legs. – Tighten screws Guideline Screw, fork stub 15 Nm (11.1 lbf ft) Finishing work – Remove the motorcycle from the lift stand. ( p.
DOT marking. The first two digits refer to the week of manufacture and last two digits refer to the year of manufac- ture. KTM recommends that the tires be changed after 5 years at the latest, regardless of the actual state of wear.
Danger of accidents Instable handling due to incorrect spoke tension. – Ensure that the spoke tension is correct. (Your authorized KTM workshop will be glad to help.) Info A loose spoke causes wheel imbalance and rapidly leads to more loose spokes.
COOLING SYSTEM 14.1 Cooling system Water pump in the engine circulates the coolant. The pressure resulting from the warming of the cooling system is regulated by a valve in radiator cap . This ensures that operating the vehicle at the specified coolant tem- perature will not result in a risk of malfunctions.
COOLING SYSTEM Condition The engine is cold. – Stand the motorcycle upright on a horizontal surface. – Remove the radiator cap. – Check the coolant level in the radiator. Coolant level above radiator fins. 10 mm (0.39 in) » If the coolant level does not meet specifications: –...
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COOLING SYSTEM – Remove bleeder screw – Pour coolant in up to measurement above the radiator fins. Guideline 10 mm (0.39 in) coolant 1.0 l (1.1 qt.) Coolant ( p. 85) Coolant (mixed ready to use) ( p. 85) – Mount and tighten bleeder screw C00279-10 –...
TUNING THE ENGINE 15.1 Checking the play in the throttle cable – Check the throttle grip for smooth operation. – Move the handlebar to the straight-ahead position. Move the throttle grip back- wards and forwards to ascertain play in the throttle cable. Throttle cable play 3…...
TUNING THE ENGINE If, during acceleration with a partially opened throttle slide, the engine runs only at stuttering performance, the jet needle must be lowered by one notch. If the engine knocks, particularly during acceleration, when it is in the top-performance engine speed range, the jet needle must be raised.
TUNING THE ENGINE 15.5 Emptying the carburetor float chamber Danger Fire hazard Fuel is highly flammable. – Never refuel the vehicle near open flames or burning cigarettes, and always switch off the engine first. Be careful that no fuel is spilt, especially on hot vehicle components. Clean up spilt fuel immediately. –...
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TUNING THE ENGINE – Clean gear teeth of the shift lever and shift shaft. – Mount the shift lever on the shift shaft in the required position and engage the gearing. Info The range of adjustment is limited. The shift lever must not come into contact with any other vehicle compo- nents during the shift procedure.
MAINTENANCE WORK ON THE ENGINE 16.1 Checking the gear oil level Info The gear oil level must be checked while the engine is cold. Preparatory work – Stand the motorcycle upright on a horizontal surface. Main work – Remove the screw from the opening used to check the gear oil level.
MAINTENANCE WORK ON THE ENGINE Main work – Remove gear oil drain plug with magnet. – Completely drain the gear oil. – Clean the gear oil drain plug with the magnet thoroughly. – Clean the sealing area on the engine. –...
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MAINTENANCE WORK ON THE ENGINE Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and/or death. – When running the engine, always make sure there is sufficient ventila- tion, and do not start or run the engine in an enclosed space without an effective exhaust extraction system.
CLEANING, CARE 17.1 Cleaning the motorcycle Note Material damage Damage and destruction of components by high-pressure cleaning equipment. – When cleaning the vehicle with a pressure cleaner, do not point the water jet directly onto electrical components, connectors, cables, bearings, etc. Maintain a minimum distance of 60 cm between the nozzle of the pressure cleaner and the component. Excessive pressure can cause malfunctions or destroy these parts.
64) – Store the vehicle in a dry location that is not subject to large fluctuations in tem- perature. Info KTM recommends raising the motorcycle. – Raise the motorcycle with the lift stand. ( p. 32) – Cover the vehicle with a tarp or similar cover that is permeable to air.
TROUBLESHOOTING Faults Possible cause Action – Engine turns but does not start Operating error Carry out the start procedure. ( p. 20) – Motorcycle was out of use for a long Empty the carburetor float chamber. time and there is old fuel in the float p.
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TROUBLESHOOTING Faults Possible cause Action – Engine overheats Foam formation in cooling system Drain the coolant. p. 66) – Refill the coolant. p. 66) – Damaged cylinder head or cylinder Check the cylinder head or cylinder head gas- head gasket ket.
TECHNICAL DATA Standard 15 clicks Sport 12 clicks Spring preload Standard 10 mm (0.39 in) Spring rate Weight of rider: < 45 kg (< 99 lb.) 30 N/mm (171 lb/in) Weight of rider: 45… 55 kg (99… 121 lb.) 35 N/mm (200 lb/in) Weight of rider: >...
TECHNICAL DATA 20.9 Carburetor Carburetor type KEIHIN PWK 28 Needle position 3rd position from top Idle air adjusting screw Open 1.5 turns Main jet Jet needle N5HG Idling jet Needle jet Throttle slide Cold start jet 20.9.1 Carburetor tuning 401536-01 M/FT ASL Above sea level TEMP...
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TECHNICAL DATA Jet needle Needle position from above Main jet The carburetor tuning depends on the defined ambient and operating conditions.
SUBSTANCES 2-stroke engine oil According to – JASO FC ( p. 89) Guideline – Only use high quality 2-stroke engine oil of a well-known brand. KTM recommends Motorex ® products. Fully synthetic Supplier Motorex ® – Cross Power 2T Brake fluid DOT 4 / DOT 5.1 According to –...
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SUBSTANCES Shock absorber oil (SAE 2.5) (50180342S1) According to – SAE ( p. 89) (SAE 2.5) Guideline – Use only oils that comply with the specified standards (see specifications on the container) and that possess the corresponding properties. Super unleaded (ROZ 98 / RON 98 / PON 94) According to –...
AUXILIARY SUBSTANCES Air filter cleaner Guideline – KTM recommends Motorex ® products. Supplier Motorex ® – Twin Air Dirt Bio Remover Chain cleaner Guideline – KTM recommends Motorex ® products. Supplier Motorex ® – Chain Clean Cleaning and preserving materials for metal, rubber and plastic Guideline –...
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AUXILIARY SUBSTANCES Oil for foam air filter Guideline – KTM recommends Motorex ® products. Supplier Motorex ® – Twin Air Liquid Bio Power Paint cleaner and polish for high-gloss and matte finishes, bare metal and plastic surfaces Guideline – KTM recommends Motorex ®...
STANDARDS JASO FC JASO FC is a classification for a 2-stroke engine oil that was specifically developed for the extreme demands of racing. Thanks to first rate synthetic esters and specially designed additives, superb combustion is achieved even under extreme operating conditions. JASO T903 MA Different technical development directions required a new specification for 4-stroke motorcycles –...