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TM Racing · Two-stroke single, premix, chain drive

SMR 125

Library entry covers 2005-2025

50 factory 50 guideline

Published source

TM Racing 125 SMR 2022 Use and Maintenance Manual, 125 (EN-SMR) / 144 (EN) Maintenance Table pp.4-52 to 4-53 (ManualsLib 2766416)

Factory source. Covers TM Racing 2-stroke use and maintenance manual 2022 naming the 125 SMR; this row spans 2005-2025, so other years may differ.

100 items for a 2017 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
Fuel injection
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
Cast / alloy, tubeless
Sidecar
No sidecar
Maintenance schedule

2017 TM Racing SMR 125

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

9 items
  • Check throttle cable(s) free play and return
    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 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

7 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.

  • 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

4 items
  • Replace air filter element
    Fuel and air
    Guideline
  • Synchronize throttle bodies
    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 24,000 mi or 4 years

1 item
  • Replace fuel filter
    Fuel and air
    Guideline

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 15 h

30 items
  • Braking system screws (check tightness)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Cooling system seal and coolant level (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Coupler and filter housing condition and seal (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Electrical system: lights, signals, indicators, horn, safety switch (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Engine fixing screws (check tightness)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Exhaust screw magnet (clean)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Exhaust system seal and fastening (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Headlight orientation (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Rear suspension screws and linkage (check tightness and smooth running)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Rubber pipes and bleeder hoses (check condition and routing)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

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

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Battery (check, charge); battery connections (grease, SMR)
    Ignition and electrics
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Electrical contacts and switches (treat with contact spray)
    Ignition and electrics
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Gearbox oil (replace)
    Primary and gearbox
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

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

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Chain (lubricate)
    Final drive
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Chain, junction, pinion, sprocket and guides wear; chain tension (check)
    Final drive
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Chassis screws: fork plates, fork feet, wheel pins, swing arm pin, shock (check tightness)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Steering bearings and play (check, adjust)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Telescopic fork (bleed)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Frame and swing arm (check)
    Rear suspension and frame
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Brake fluid level, pad thickness, front and rear discs (check)
    Brakes
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Brake lever and pedal operation, adjustment and play (check)
    Brakes
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Brake pipes condition and seal (check)
    Brakes
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

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

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Wheel bearing play (check)
    Wheels and tires
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Wheel hubs, spoke tension and rim centering (check)
    Wheels and tires
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Control cables: condition, routing, adjustment, lubrication (check)
    Controls and cables
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Moving parts: side stand, levers (lubricate, check)
    Controls and cables
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Throttle cable play and idle speed (check, adjust)
    Controls and cables
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): after 1 hour, then every 15 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 30 h

5 items
  • Exhaust valve actuator clearance (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 30 hours (after every ride). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Muffler soundproofing material (replace)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 30 hours (after every ride). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Fork and shock absorber seals and operation (check)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 30 hours (after every ride). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Fork dust seals (clean)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 30 hours (after every ride). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Swing arm bearings (check)
    Rear suspension and frame
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 30 hours (after every ride). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 45 h or 12 months

2 items
  • Full fork maintenance
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours, every 135 hours (75 hours sports use) and every year. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Full shock absorber maintenance
    Rear suspension and frame
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours, every 135 hours (75 hours sports use) and every year. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 45 h

4 items
  • Cylinder and piston wear (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Exhaust valves (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Piston (fully change)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours (also listed at 80 hours). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Clutch discs and springs (check)
    Primary and gearbox
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 45 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 80 h

3 items
  • Exhaust valves (replace)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 80 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Mixer oil pump (replace)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 80 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Steering bearings and seals (clean and grease)
    Front end
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 80 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 95 h

1 item
  • Engine bearings and engine oil seals (fully change)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 95 hours. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 135 h

3 items
  • Conrod (fully change)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 135 hours (75 hours sports use). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Spark plug (replace) and cap (check)
    Engine
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 135 hours (75 hours sports use). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Transmission and gearbox (check)
    Primary and gearbox
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every 135 hours (75 hours sports use). Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

Every 6 months

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

Every 12 months

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

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every year. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

  • Front and rear brake fluid (change)
    Brakes
    Factory

    Factory: 125 (EN-SMR) / 144 (EN) maintenance table (TM Racing 2-stroke use and maintenance manual 2022, naming 125 SMR-EN-TSI, printed pp.4-52 to 4-53): every year. Columns as printed: after 1 hour; every 15 hours; every 30 hours (after every ride); every 45, 80 and 95 hours; every 135 hours (75 hours of sports use); every year. Operations to be done by an authorized TM workshop or specialized personnel; the hour meter is built into the dash.

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

1 item
  • 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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