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KTM · Two-stroke single, premix, chain drive

XC 150

Library entry covers 2012-2025

37 factory 52 guideline

Published source

KTM Owner's Manual 2012 125/150/250 SX, 150 XC USA, 250/300 XC (3211714en), Service schedule (XC) pp.26-27 (ktmshop.se)

Factory source. Covers KTM owner's manual 2012 naming the 150 XC USA (art. no. 3211714en); one model year of this row.

89 items for a 2025 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)
Engine cycle
Two-stroke
Engine lubrication
Two-stroke premix (oil in fuel)
Oil filtration
None (no filter)
Valve gear
None (two-stroke porting)
Ignition
Electronic (CDI / transistor / ECU)
Charging
Alternator / stator with rectifier
Battery
Wet cell (flooded lead-acid, needs topping up)
Fuel system
Single carburetor
Cooling
Liquid cooled
Primary drive
Gear or chain inside engine, shares engine oil
Gearbox oil
Separate gearbox oil
Clutch control
Hand lever, hydraulic
Final drive
Chain
Front suspension
Telescopic fork
Rear suspension
Swingarm, single shock / cantilever
Front brake
Disc, hydraulic
Rear brake
Disc, hydraulic
Wheels
Spoked, tubed
Sidecar
No sidecar
Maintenance schedule

2025 KTM XC 150

On the road: every 150 mi

1 item
  • Check two-stroke oil tank / carry premix oil
    Pre-ride / on the road
    Guideline

    Running a two-stroke out of oil seizes it. Injection bikes: check the tank. Premix: carry oil and a measure.

On the road: every 300 mi

3 items
  • Check lights, horn, brake light switches
    Pre-ride / on the road
    Guideline
  • Check tire pressures
    Pre-ride / on the road
    Guideline
  • Lubricate drive chain
    Pre-ride / on the road
    Guideline

    Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 500 mi

1 item
  • Check coolant level
    Pre-ride / on the road
    Guideline

On the road: every 600 mi

1 item
  • Check chain slack and rear wheel alignment
    Pre-ride / on the road
    Guideline

Every 1,000 mi or 6 months

1 item
  • Inspect tire tread, sidewalls and date codes
    Wheels and tires
    Guideline

Every 2,000 mi or 12 months

1 item
  • Replace spark plugs (two-stroke)
    Engine
    Guideline

Every 3,000 mi or 12 months

11 items
  • Check throttle cable(s) free play and return
    Fuel and air
    Guideline
  • Clean fuel tap filter / sediment bowl
    Fuel and air
    Guideline
  • Clean drive chain thoroughly (remove and soak, re-lube)
    Final drive
    Guideline

    Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.

  • Inspect chain and sprockets for wear (measure stretch)
    Final drive
    Guideline
  • Check steering head bearing adjustment
    Front end
    Guideline
  • Inspect fork seals, stanchions and fork boots
    Front end
    Guideline
  • Check footrests, pegs, rear brake and gear lever pivots
    Rear suspension and frame
    Guideline
  • Grease and check center / side stand and springs
    Rear suspension and frame
    Guideline
  • Check brake pads and discs
    Brakes
    Guideline
  • Check spoke tension and wheel true
    Wheels and tires
    Guideline
  • Check wheel bearings for play
    Wheels and tires
    Guideline

Every 3,000 mi or 2 years

1 item
  • Decarbonize exhaust ports, pipes and baffles
    Engine
    Guideline

    Two-strokes coke up the exhaust port and muffler baffles; power falls off gradually.

Every 4,000 mi or 12 months

1 item
  • Inspect, clean and gap spark plugs
    Engine
    Guideline

Every 6,000 mi or 12 months

8 items
  • Inspect coolant hoses and clamps
    Engine
    Guideline
  • Clean / inspect air filter
    Fuel and air
    Guideline

    Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.

  • Clean carburetor float bowl(s), check float level and jets
    Fuel and air
    Guideline

    Ethanol fuel varnishes old carbs quickly in storage.

  • Check charging voltage and regulator / cut-out
    Ignition and electrics
    Guideline
  • Check swingarm bushes for play
    Rear suspension and frame
    Guideline
  • Inspect rear shocks for leaks and damping
    Rear suspension and frame
    Guideline
  • Lubricate control cables and lever pivots
    Controls and cables
    Guideline
  • Lubricate speedometer / tachometer cables, check drive
    Controls and cables
    Guideline

    A dry speedo cable whips the needle and eventually kills the instrument.

Every 10,000 mi or 2 years

2 items
  • Compression test (or leak-down)
    Engine
    Guideline
  • Change gearbox oil
    Primary and gearbox
    Guideline

Every 12,000 mi or 2 years

3 items
  • Replace air filter element
    Fuel and air
    Guideline
  • Clean and grease rear suspension linkage
    Rear suspension and frame
    Guideline
  • Grease swingarm pivot
    Rear suspension and frame
    Guideline

Every 15,000 mi or 3 years

1 item
  • Change fork oil
    Front end
    Guideline

    Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 16,000 mi or 4 years

1 item
  • Replace spark plugs
    Engine
    Guideline

Every 18,000 mi

1 item
  • Replace chain and sprockets (wear based)
    Final drive
    Guideline

Every 20,000 mi or 4 years

2 items
  • Repack / replace steering head bearings
    Front end
    Guideline

    Many old machines use loose balls in cups and cones. Taper roller conversions are common.

  • Repack / replace wheel bearings
    Wheels and tires
    Guideline

    Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 25,000 mi or 6 years

1 item
  • Replace swingarm bushes / bearings
    Rear suspension and frame
    Guideline

Every 30,000 mi or 6 years

1 item
  • Rebuild forks: seals, bushes, springs
    Front end
    Guideline

Every 20 h

24 items
  • Antifreeze and coolant level (check)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Final check and test ride
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Gear oil (change)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Idle (check)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Intake diaphragm (check)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Main muffler glass fiber yarn filling (change)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Screws and nuts (check tightness)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Spark plug and spark plug connector (change)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Air filter and air filter box (clean)
    Fuel and air
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Hoses: fuel, cooling, bleeding, drainage and sleeves (check)
    Fuel and air
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Hydraulic clutch fluid level (check)
    Primary and gearbox
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Chain, rear sprocket, engine sprocket, chain guide; chain tension (check)
    Final drive
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Moving parts: hand lever, chain (grease, check)
    Final drive
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Minor fork service (all XC models)
    Front end
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Steering head bearing play (check)
    Front end
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Frame and swingarm (check)
    Rear suspension and frame
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Shock absorber linkage (check)
    Rear suspension and frame
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Brake lines (check damage and leakage)
    Brakes
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Foot and hand brake lever free travel (check)
    Brakes
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Front and rear brake fluid level (check)
    Brakes
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Front and rear brake linings and brake discs (check)
    Brakes
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Tire condition and air pressure (check)
    Wheels and tires
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Wheel bearing play, wheel hub, rim run-out, spoke tension (check)
    Wheels and tires
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Cables and throttle cables (check routing and setting)
    Controls and cables
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 20 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

Every 40 h

6 items
  • Piston (change) and cylinder (check) (125/150 models)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Clutch (check)
    Primary and gearbox
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours / after each race. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Major fork service (all XC models)
    Front end
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Shock absorber service (all XC models)
    Rear suspension and frame
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Swingarm bearing (check)
    Rear suspension and frame
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours / after each race. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Exhaust control function (check)
    Controls and cables
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 40 service hours / after each race. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

Every 80 h or 12 months

1 item
  • Carburetor components (check/set)
    Fuel and air
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 80 service hours and annually. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

Every 80 h

3 items
  • All engine bearings (change)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 80 service hours (every 40 in sporting use). Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Connecting rod, conrod bearing and crank pin (change)
    Engine
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 80 service hours (every 40 in sporting use). Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Transmission and shift mechanism (check)
    Primary and gearbox
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): every 80 service hours (every 40 in sporting use). Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

Every 6 months

1 item
  • Clean battery terminals, check charge and strap
    Ignition and electrics
    Guideline

Every 12 months

3 items
  • Hydraulic clutch fluid (change)
    Primary and gearbox
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): annually. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Steering head bearing (grease)
    Front end
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): annually. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

  • Front and rear brake fluid (change)
    Brakes
    Factory

    Factory: Service schedule (XC) (KTM owner's manual 2012, 125/150/250 SX and 150 XC USA, 250/300 XC, art. no. 3211714en, printed pp.26-27): annually. Legend as printed: S20A every 20 service hours (about 140 liters of fuel); S40A every 40 service hours (about 280 liters) / after each race; S80A every 80 service hours (about 560 liters), or every 40 hours in sporting use; J1A annually. Items marked x should be done by a KTM workshop. This 2012 manual covers one model year of the row.

Every 2 years

5 items
  • Replace coolant
    Engine
    Guideline
  • Inspect wiring, bullet connectors and ground points
    Ignition and electrics
    Guideline
  • Replace hydraulic clutch fluid
    Primary and gearbox
    Guideline
  • Inspect frame, welds and lugs for cracks
    Rear suspension and frame
    Guideline
  • Replace brake fluid
    Brakes
    Guideline

Every 4 years

3 items
  • Replace fuel lines
    Fuel and air
    Guideline

    Old rubber and modern ethanol fuel do not mix well.

  • Inspect brake hoses; replace old rubber
    Brakes
    Guideline
  • Rebuild calipers and master cylinders (seals)
    Brakes
    Guideline

Every 6 years

2 items
  • Replace inner tubes and rim tape with tires
    Wheels and tires
    Guideline
  • Replace tires on age (regardless of tread)
    Wheels and tires
    Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.

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Other 2025 KTM models

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1995-2025
EXC 300
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1995-2025
SX 50
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1999-2025
SX 125
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2000-2025
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2000-2025
SX 250
Factory
2003-2025
EXC 450
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2003-2025
SX 450
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2003-2025
SX 65
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