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11

SERVICE WORK ON THE CHASSIS

47

11.23

Mounting the seat

H01431-10

Hook the seat onto screw

, lower the seat at the rear, and push it forward.

Catch

hooks into the fuel tank.

H00066-11

Close quick release

.

11.24

Removing the air filter

Note

Engine damage

Unfiltered intake air has a negative effect on the service life of the engine.

Dust and dirt will enter the engine without an air filter.

Never start to use the vehicle without an air filter.

Warning

Environmental hazard

Hazardous substances cause environmental damage.

Dispose of oils, grease, filters, fuel, cleaning agents, brake fluid, etc., correctly and in compliance with the applicable regu-
lations.

Preparatory work

Remove the seat. (

p. 46)

H01432-10

Main work

Press the rear holding lugs

together slightly and swing the air filter box cover

upward. Pull out the front holding lug and take off the air filter box cover.

Take off the air filter.

11.25

Installing the air filter

H01477-10

Main work

Position the clean air filter.

Position the rear holding lug. Lower the air filter box cover and allow the front hold-
ing lug

to snap in.

Info

If the air filter is not correctly mounted, dust and dirt can enter the engine
and cause damage.

Finishing work

Mount the seat. (

p. 47)

Содержание 50 SX 2017

Страница 1: ...OWNER S MANUAL 2017 50 SX 50 SX Mini Art no 3213469en...

Страница 2: ......

Страница 3: ...services designs equipment etc without prior notice and without specifying reasons to adapt these to local conditions as well as to stop production of a particular model without prior notice KTM acce...

Страница 4: ...ompression damping of the shock absorber 50 SX 25 10 6 Adjusting the rebound damping of the shock absorber 26 10 7 Measuring rear wheel sag unloaded 27 10 8 Checking the static sag of the shock absorb...

Страница 5: ...14 1 Cooling system 71 14 2 Checking the antifreeze and coolant level 71 14 3 Checking the coolant level 72 14 4 Draining the coolant 72 14 5 Refilling with coolant 73 15 TUNING THE ENGINE 74 15 1 Che...

Страница 6: ...here your motorcycle will be optimally cared for by specially trained experts using the specialist tools required Indicates a page reference more information is provided on the specified page Indicate...

Страница 7: ...onmental damage if the appropriate measures are not taken 2 4 Tampering warning Tampering with the noise control system is prohibited Federal law prohibits the following acts or the causing thereof 1...

Страница 8: ...ings pins lock washers must be replaced by new parts In some instances a thread locker e g Loctite is required The manufacturer instructions for use must be followed After disassembly clean the parts...

Страница 9: ...current KTM PowerParts for your vehicle can be found on the KTM website International KTM Website http www ktm com 3 4 Service A prerequisite for perfect operation and prevention of premature wear is...

Страница 10: ...4 VIEW OF VEHICLE 8 4 1 View of vehicle front left example H01462 10 1 Filler cap 2 Quick release of seat 3 Chain guide 4 Plug in stand p 15 5 Choke p 14 6 Fuel tap p 14...

Страница 11: ...9 4 2 View of vehicle rear right example H01463 10 1 Kill switch p 12 2 Throttle grip p 12 3 Hand brake lever p 12 4 Chassis number p 10 5 Kick starter p 14 6 Foot brake lever p 15 7 Level viewer for...

Страница 12: ...0 SX The type label is located on the front frame tube 402007 11 50 SX Mini The type label is located on the frame at the front right 5 3 Engine number 401949 10 The engine number is located on the le...

Страница 13: ...number H01186 10 50 SX The shock absorber article number is stamped on the bottom of the shock absorber towards the rear 0 0 1 1 401948 11 50 SX Mini The shock absorber article number is stamped on t...

Страница 14: ...ghly flammable The fuel in the fuel tank expands when warm and can escape if overfilled Do not refuel the vehicle in the vicinity of open flames or lit cigarettes Switch off the engine for refueling M...

Страница 15: ...counterclockwise and pull it up 6 5 Closing filler cap V00252 11 Put the tank cap on and turn it clockwise Info Run the fuel tank breather hose without kinks 6 6 Opening oil tank cap 50 SX Mini V0025...

Страница 16: ...function activated Choke knob is in upper position The O ring is visible Choke function deactivated Choke knob is in lower position The O ring is not visible 6 10 Choke 50 SX Mini H00086 10 The choke...

Страница 17: ...of the right footrest The rear brake is engaged with the foot brake lever 6 13 Plug in stand 402581 10 The fixture for plug in stand is located on the frame on the left side of the vehicle The plug i...

Страница 18: ...ng Warning Danger of crashing Different tire tread patterns on the front and rear wheel impair the handling characteristic Different tire tread patterns can make the vehicle significantly more difficu...

Страница 19: ...ur child ride to another person who can help your child stop and turn Erect obstacles for your child to navigate around to accustom your child to handling the vehicle Your child should also try to rid...

Страница 20: ...for tightness Check the fuel supply 8 2 Starting Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death Always make sure there is sufficient vent...

Страница 21: ...the wheels Explain to your child that he or she must adapt the braking to the traffic situation and the road conditions Warning Danger of accidents A spongy pressure point on the front or rear brake r...

Страница 22: ...hazard Hot vehicle components pose a fire hazard and explosion risk Do not park the vehicle near to materials which are highly flammable or explosive Allow the vehicle to cool down before covering it...

Страница 23: ...5 RON 95 PON 91 p 94 Fuel tank capacity approx 50 SX 2 3 l 2 4 qt Super unleaded 95 octane mixed with 2 stroke engine oil 1 60 p 94 Close the filler cap p 13 8 9 Filling up with oil 50 SX Mini Warning...

Страница 24: ...n p 70 Check the chain rear sprocket engine sprocket and chain guide p 52 Check the chain tension p 51 Grease all moving parts e g hand lever chain and check for smooth operation Check the front brake...

Страница 25: ...d bearing p 42 Check adjust the carburetor components Perform minor engine service Change the spark plug Check the cylinder and piston Check the inlet mem brane Perform major engine service including...

Страница 26: ...the left fork leg as an end stop Info If the fork is frequently overloaded then the air pressure in the fork must be increased to avoid damage to the fork and frame The air pressure in the fork can be...

Страница 27: ...15 clicks Sport 12 clicks Info Turn clockwise to increase damping turn counterclockwise to reduce damp ing 10 5 Adjusting the high speed compression damping of the shock absorber 50 SX Caution Risk o...

Страница 28: ...the number of clicks corresponding to the shock absorber type Guideline Rebound damping Comfort 17 clicks Standard 15 clicks Sport 13 clicks Info Turn clockwise to increase damping turn counterclockwi...

Страница 29: ...n the side cover Make a note of the value as measurement Finishing work Remove the motorcycle from the lift stand p 34 10 8 Checking the static sag of the shock absorber 0 0 A A 0 0 B B 400989 10 Meas...

Страница 30: ...hock absorber is disassembled incorrectly The shock absorber is filled with highly compressed nitrogen Please follow the description provided Your authorized KTM workshop will be glad to help Preparat...

Страница 31: ...e from the lift stand p 34 10 11 Adjusting the riding sag Preparatory work 50 SX Raise the motorcycle with a lift stand p 34 50 SX Mini Raise the motorcycle with a lift stand p 34 Remove the rear whee...

Страница 32: ...eme modifications to the suspension setting may cause a serious deterioration in the handling characteristic and overload components Only make adjustments within the recommended range Make sure your c...

Страница 33: ...Turn counterclockwise by the number of clicks corresponding to the fork type Guideline Rebound damping Comfort 15 clicks Standard 12 clicks Sport 10 clicks Info Turn clockwise to increase damping tur...

Страница 34: ...e positioned correctly Position the handlebar clamps Fit and evenly tighten the screws Guideline Screw handlebar clamp M8 20 Nm 14 8 lbf ft Info Make sure the gap width is even 10 17 Adjusting the sea...

Страница 35: ...10 TUNING THE CHASSIS 33 V00264 10 Mount nut and tighten fitting Guideline Screw top shock absorber M10 45 Nm 33 2 lbf ft Loctite 243 Finishing work Remove the motorcycle from the lift stand p 34...

Страница 36: ...Park the vehicle on a firm and level surface 402581 10 Remove the motorcycle from the lift stand Remove the lift stand To park the motorcycle insert plug in stand into the plug in stand bracket on th...

Страница 37: ...the brake discs free of oil and grease Clean the brake discs with brake cleaner when necessary Clean and oil the dust boots and inner fork tube of both fork legs Universal oil spray p 96 Press the du...

Страница 38: ...screws and take off the clamp Remove screws and take off the brake caliper Allow the brake caliper and brake line to hang loosely to the side V00269 10 50 SX Loosen screws Take out the left fork leg L...

Страница 39: ...1 lbf ft V00271 10 Position the brake caliper and mount and tighten screws Guideline Screw front brake caliper M8 20 Nm 14 8 lbf ft Loctite 243 Position the brake line and clamp Mount and tighten scre...

Страница 40: ...r triple clamp with the steering stem Mount upper steering head bearing Check whether upper steering head seal is correctly positioned Push on protective ring V00282 10 Position the upper triple clamp...

Страница 41: ...deline Screw top triple clamp M8 20 Nm 14 8 lbf ft H01183 10 50 SX Mini Position the fork legs Bleeder screws are positioned toward the front Info The second milled groove in the fork leg must be flus...

Страница 42: ...irs the handling characteristic and damages components Correct incorrect steering head bearing play immediately Your authorized KTM workshop will be glad to help Info If the bike is ridden with play i...

Страница 43: ...Tighten screws Guideline Screw top triple clamp M8 20 Nm 14 8 lbf ft Position the fuel tank breather in the steering stem H01423 10 50 SX Mini Pull fuel tank breather out of the steering stem Loosen s...

Страница 44: ...rning Danger of poisoning Fuel is poisonous and a health hazard Avoid skin eye and clothing contact with fuel Immediately consult a doctor if you swallow fuel Do not inhale fuel vapors In case of skin...

Страница 45: ...you swallow fuel Do not inhale fuel vapors In case of skin contact rinse the affected area with plenty of water Rinse the eyes thoroughly with water and consult a doctor in case of fuel contact with...

Страница 46: ...H01427 10 Mount and tighten screw Guideline Screw start number plate M6 4 Nm 3 lbf ft 11 18 Dismounting the front fender H01428 10 Remove screws Remove the front fender 11 19 Installing the front fend...

Страница 47: ...t blocking the rear wheel Secure the rear wheel in this position Remove screw push splash protector to the side and remove the shock absorber V00279 10 50 SX Mini Remove nut and V00280 10 Remove screw...

Страница 48: ...ft Loctite 243 V00280 11 50 SX Mini Push splash protector to the side Position the shock absorber with screw depending on the desired seating height Raise the swingarm position the shock absorber wit...

Страница 49: ...ental damage Dispose of oils grease filters fuel cleaning agents brake fluid etc correctly and in compliance with the applicable regu lations Preparatory work Remove the seat p 46 H01432 10 Main work...

Страница 50: ...Oil the dry air filter with a high quality filter oil Oil for foam air filter p 95 Clean the air filter box Check the intake flange for damage and looseness Finishing work Install the air filter p 47...

Страница 51: ...ncer cap Remove end cap and outer tube Remove glass fiber yarn filling from the inner tube Clean the parts that need to be reinstalled and check for damage Mount the new glass fiber yarn filling on th...

Страница 52: ...ycle from the lift stand p 34 11 32 Checking the chain for dirt 400678 01 Check the chain for coarse dirt accumulation If the chain is very dirty Clean the chain p 50 11 33 Cleaning the chain Warning...

Страница 53: ...in tension regularly Set the chain tension in accordance with the specification Preparatory work Raise the motorcycle with a lift stand p 34 H01438 10 Main work 50 SX Press the chain upward at the end...

Страница 54: ...2 0 31 in Turn adjusting nuts equally on the left and right The rear wheel must be aligned with the front wheel Make sure that the chain adjuster support plates are in contact with adjusting nuts Tig...

Страница 55: ...the screw of the chain sliding guard Guideline Screw chain sliding piece M6 3 Nm 2 2 lbf ft V00285 01 Check the chain sliding piece for wear If the lower edge of the chain pins is in line with or bel...

Страница 56: ...10 Loosen screw Position the chain guide Tighten the screw Guideline Remaining screws chassis M6 10 Nm 7 4 lbf ft 11 38 Checking the frame S00876 01 Check the frame for cracks and deformation If the...

Страница 57: ...must be routed to the carburetor behind the handlebars and above the fuel tank bracket If the throttle cable is not routed as specified Correct the throttle cable routing Finishing work Install the fu...

Страница 58: ...rew Guideline Play of hand brake lever 3 5 mm 0 12 0 2 in 12 3 Adjusting the basic position of the hand brake lever H00098 11 Remove screw Take off cover H00099 10 Check the play of the handbrake leve...

Страница 59: ...minated Your authorized KTM workshop will be glad to help Warning Skin irritation Brake fluid causes skin irritation Keep brake fluid out of the reach of children Wear suitable protective clothing and...

Страница 60: ...ive clothing and safety glasses Do not allow brake fluid to come into contact with the skin the eyes or clothing Consult a doctor immediately if brake fluid has been swallowed Rinse the affected area...

Страница 61: ...arning Skin irritation Brake fluid causes skin irritation Keep brake fluid out of the reach of children Wear suitable protective clothing and safety glasses Do not allow brake fluid to come into conta...

Страница 62: ...voir mounted on the handlebar to a horizontal position Remove screws Remove cover with membrane Press the brake piston back into the basic position and ensure that brake fluid does not flow out of the...

Страница 63: ...sc and there is a pressure point Correct the brake fluid level Guideline Brake fluid level under top level of con tainer 5 mm 0 2 in Brake fluid DOT 4 DOT 5 1 p 93 Position the cover with the membrane...

Страница 64: ...er spring Check whether the basic position of the foot brake lever is suitable for the rider When the basic position of the foot brake lever needs to be adjusted Adjust the basic position of the foot...

Страница 65: ...be glad to help Warning Skin irritation Brake fluid causes skin irritation Keep brake fluid out of the reach of children Wear suitable protective clothing and safety glasses Do not allow brake fluid t...

Страница 66: ...he minimum thickness is less than specified Change the rear brake linings p 64 Check the brake linings for damage and cracking If damage or wear is encountered Change the rear brake linings p 64 12 15...

Страница 67: ...al hazard Hazardous substances cause environmental damage Dispose of oils grease filters fuel cleaning agents brake fluid etc correctly and in compliance with the applicable regu lations Info Never us...

Страница 68: ...ite 243 Mount screw Guideline Screw brake linings M5 8 Nm 5 9 lbf ft Mount lock washer Check the brake discs p 57 H01187 10 Operate the foot brake lever repeatedly until the brake linings are in conta...

Страница 69: ...is removed H00934 10 Remove spacers 13 2 Installing the front wheel Warning Danger of accidents Oil or grease on the brake discs reduces the braking effect Always keep the brake discs free of oil and...

Страница 70: ...a lift stand p 34 V00281 10 Main work Remove nut with washer Info Cover the components to protect them against damage Pull out wheel spindle with washer Remove the chain from the rear sprocket Warning...

Страница 71: ...bf ft Operate the foot brake lever repeatedly until the brake linings are in contact with the brake disc and there is a pressure point Finishing work Remove the motorcycle from the lift stand p 34 13...

Страница 72: ...of accidents Incorrectly tensioned spokes impair the handling characteristic and result in secondary damage The spokes break due to being overloaded if they are too tightly tensioned If the tension in...

Страница 73: ...ses or other components of the cooling system In the event of scalding rinse the area affected immediately with lukewarm water Warning Danger of poisoning Coolant is toxic and a health hazard Keep coo...

Страница 74: ...rface Remove the radiator cap Check the coolant level in the radiator Coolant level above the radiator fins 10 mm 0 39 in If the coolant level does not match the specified value Correct the coolant le...

Страница 75: ...h water and consult a doctor immediately if coolant gets into the eyes Change clothing if coolant spills onto your clothing H00105 10 Main work Make sure that screw is tightened Position the motorcycl...

Страница 76: ...t the play in the throttle cable p 74 Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death Always make sure there is sufficient ventilation when...

Страница 77: ...tting of the carburetor has a big influence on the starting behavior stable idling and the response to throttle opening This means that an engine with a correctly set idle speed is easier to start tha...

Страница 78: ...r temperature or altitude changes adjust the idle speed again 15 7 Carburetor adjusting idle speed 50 SX Mini H00078 10 Screw in idle air adjusting screw all the way and turn it to the specified basic...

Страница 79: ...icle make contact with a fixed object Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death Always make sure there is sufficient ventilation when...

Страница 80: ...ectable click Turn adjusting screws clockwise by 9 clicks to the basic setting Guideline Basic setting of slip speed 8 700 9 300 rpm Info The springs may not be pretensioned by more than 17 clicks fro...

Страница 81: ...eck the gear oil level p 81 Check the clutch setting p 77 15 11 Installing the clutch cover H01458 11 Main work Position clutch cover with the seal ring Mount and tighten screws Guideline Screw clutch...

Страница 82: ...nk the oil tank must be filled up toMIN mark at a minimum If the oil level does not meet specifications Fill up with oil p 21 16 2 Bleeding the oil pump 50 SX Mini Condition The fuel tank has been rem...

Страница 83: ...screw Guideline Screw gear oil level check M6 6 Nm 4 4 lbf ft S00882 10 50 SX Mini Remove gear oil monitoring screw Check the gear oil level A small amount of gear oil should flow out If no gear oil...

Страница 84: ...magnet Clean the sealing surface on the engine Mount and tighten the oil drain plug with magnet and seal ring Guideline Oil drain plug with magnet M12x1 5 20 Nm 14 8 lbf ft H01460 10 Remove filler plu...

Страница 85: ...3 p 93 Mount and tighten screw in the opening used to check the gear oil level Guideline Screw gear oil level check M6 6 Nm 4 4 lbf ft Mount and tighten filler plug Danger Danger of poisoning Exhaust...

Страница 86: ...r and then clean with a brush Motorcycle cleaner p 95 Info Use warm water containing normal motorcycle cleaner and a soft sponge Never apply motorcycle cleaner to the dry vehicle always rinse with wat...

Страница 87: ...new season 401058 01 When refueling for the last time before taking the motorcycle out of service add fuel additive Fuel additive p 95 Fill up with fuel p 20 Clean the motorcycle p 84 Change the gear...

Страница 88: ...50 SX Check set the carburetor components 50 SX Mini Check set the carburetor components Engine has no idle Idling jet blocked 50 SX Check set the carburetor components 50 SX Mini Check set the carbu...

Страница 89: ...intake flange and carburetor for tightness The connector or ignition coil is loose or oxidized Clean the plug in connection and treat it with contact spray Engine overheats Too little coolant in cooli...

Страница 90: ...4 lbf ft Screw stator clamp M5 6 Nm 4 4 lbf ft Loctite 222 Screw water pump wheel M5 5 Nm 3 7 lbf ft Loctite 243 Bleeder flange of engine case M6 4 Nm 3 lbf ft Loctite 243 Drain plug water pump cover...

Страница 91: ...oil Gear oil 0 20 l 0 21 qt Gear oil ATF Dexron 3 p 93 20 4 2 Coolant Coolant 0 7 l 0 7 qt Coolant p 93 20 4 3 Fuel Fuel tank capacity approx 50 SX 2 3 l 2 4 qt Super unleaded 95 octane mixed with 2...

Страница 92: ...50 SX Mini 558 mm 21 97 in Ground clearance unloaded 50 SX 252 mm 9 92 in Ground clearance unloaded 50 SX Mini 184 mm 7 24 in Weight without fuel approx 50 SX 41 5 kg 91 5 lb Weight without fuel appro...

Страница 93: ...ems 3614 DCC Compression damping low speed Comfort 18 clicks Standard 15 clicks Sport 12 clicks Compression damping high speed Comfort 2 5 turns Standard 2 turns Sport 1 5 turns Rebound damping Comfor...

Страница 94: ...plate M6 4 Nm 3 lbf ft Screw throttle grip M6 4 5 Nm 3 32 lbf ft Nut foot brake lever M8 22 Nm 16 2 lbf ft Nut rim lock M8 10 Nm 7 4 lbf ft Remaining nuts chassis M8 25 Nm 18 4 lbf ft Remaining screws...

Страница 95: ...water Recommended supplier Motorex COOLANT M3 0 Engine oil 2 stroke Standard classification JASO FD p 97 Guideline Only use high grade 2 stroke engine oil of a reputable brand Fully synthetic Recomme...

Страница 96: ...RON 95 PON 91 Guideline Only use unleaded super fuel that matches or is equivalent to the specified fuel grade Fuel with an ethanol content of up to 10 E10 fuel is safe to use Info Do not use fuel co...

Страница 97: ...ended supplier SKF LGHB 2 Long life grease Recommended supplier Motorex Bike Grease 2000 Motorcycle cleaner Recommended supplier Motorex Moto Clean Off road chain spray Recommended supplier Motorex Ch...

Страница 98: ...22 AUXILIARY SUBSTANCES 96 Universal oil spray Recommended supplier Motorex Joker 440 Synthetic...

Страница 99: ...irst rate synthetic esters and specially designed additives superb combustion is achieved even under extreme operating conditions SAE The SAE viscosity classes were defined by the Society of Automotiv...

Страница 100: ...24 LIST OF ABBREVIATIONS 98 Art no Article number ca circa cf compare e g for example etc et cetera i a inter alia no number poss possibly...

Страница 101: ...g 84 Clutch adjusting 78 setting checking 77 Clutch cover clutch cover removing 77 installing the clutch cover 79 Compression damping high speed shock absorber adjusting 25 Compression damping low spe...

Страница 102: ...e advice on first use 16 after storage 85 checks and maintenance measures when preparing for use 18 Protective clothing 6 R Rear sprocket checking 52 Rear wheel installing 68 removing 68 Rebound dampi...

Страница 103: ...r 91 tires 90 Throttle cable routing checking 55 Throttle grip 12 Tire air pressure checking 70 Tire condition checking 69 Transport 20 Troubleshooting 86 87 Type label 10 U Use definition 5 V View of...

Страница 104: ...3213469en 3213469en 04 2016 KTM Sportmotorcycle GmbH 5230 Mattighofen Austria http www ktm com Photo Mitterbauer KTM...

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