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

MX 85

Library entry covers 2004-2025

40 factory 50 guideline

Published source

TM Racing 2-stroke 85/100/125/144 User and Maintenance Manual, maintenance and lubrication tables (ManualsLib viewer pp.32-34)

Factory source. Covers TM Racing 2-stroke 85/100/125/144 END/MX User and Maintenance Manual (English; no year printed in the pages read); other editions not compared.

90 items for a 2014 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: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2014 TM Racing MX 85

On the road: every 200 km

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 500 km

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 800 km

1 item

Check coolant level

Pre-ride / on the road

Guideline

On the road: every 1,000 km

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 km or 12 months

1 item

Replace spark plugs (two-stroke)

Engine

Guideline

Every 5,000 km or 12 months

10 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 wheel bearings for play

Wheels and tires

Guideline

Every 5,000 km 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 6,500 km or 12 months

1 item

Inspect, clean and gap spark plugs

Engine

Guideline

Every 9,500 km 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 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 19,500 km 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 24,000 km 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 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 32,000 km 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 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 30 h

30 items

Cooling system leaks and coolant level (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Drain bolt (clean)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Electrical system: lights, stop, indicators, horn, OFF button (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Engine mounting screws (check tightness)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Headlamp aim (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Idle speed adjustment (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Oil drain screws: leaks and tightness (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Rear suspension linkage screws (check tightness)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Rubber pipes: condition and routing (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Vent pipes: condition and routing (check)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Air filter and filter case (clean)

Fuel and air

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Carburetor fastening to engine and filter case (check)

Fuel and air

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Transmission oil (replace)

Primary and gearbox

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Chain (lubricate)

Final drive

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Chain, master link, sprockets and tension (check)

Final drive

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Chassis screws: fork clamps, fork legs, axle nuts, swingarm axle, shock (check tightness)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Fork dust screens (clean)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Fork legs (bleed)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Shock absorber and forks for leaks and function (check)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Steering bearings (check and adjust)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Brake fluid level, pad thickness and brake discs (check)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Brake hose screws (check tightness)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Brake hoses condition (check)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Front brake lever and brake pedal function, adjustment and free play (check)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Hydraulic brake and clutch reservoir fluid levels (check)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Spoke tension and rim trueness (check)

Wheels and tires

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Tire condition and pressure (check)

Wheels and tires

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Wheel bearing play (check)

Wheels and tires

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Cables: condition and routing (check)

Controls and cables

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every 30 hours (competition use: after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Pipes and cables: condition and routing; throttle and decompressor cables (adjust and lubricate)

Controls and cables

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after 3 hours, then every 30 hours (competition use: after 2 hours and after every race). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 12 months

8 items

Muffler packing (replace)

Engine

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year in hobby use; every race in competition use. Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Carburetor (clean and tune)

Fuel and air

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Electrical contacts and switches (treat with contact spray)

Ignition and electrics

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Hydraulic clutch fluid (replace)

Primary and gearbox

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Fork (complete maintenance)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Steering bearings and seals (clean and grease)

Front end

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Shock absorber (complete maintenance)

Rear suspension and frame

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Brake fluid (replace)

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): every year (competition use: every 3 races). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.

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

No interval set

2 items

Rider check: chain cleaning, lubrication and tension

Final drive

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): after every wash and after off-road use (rider check). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.
Rider check: engine oil level, brake fluid level, brake pad wear, tires, coolant level, fuel pipe leaks, controls and braking effect

Brakes

Factory

Factory: Maintenance and lubrication table, 85/100/125/144 END/MX hobby use (manual p.32, ManualsLib viewer p.32): before every start-up (rider check). Hobby-use columns as printed: 1st service after 3 hours, every 30 hours; plus operations recommended every year. Intervals should not be exceeded by more than 2 hours. The competition-use table on p.33 lists the same checks after 2 hours and after every race, with the yearly items every 3 races. Rider checks on p.34 are before every start-up, after every wash and after off-road use.

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.