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CFMoto · Shim-adjusted overhead-cam four-stroke, wet sump, gearbox shares engine oil, chain drive

250NK

Library entry covers 2020-2022

61 factory 50 guideline

Published source

CFMOTO 250NK / 300NK Owner's Manual, break-in and periodic maintenance schedules pp.99-107 (ManualsLib)

Factory owner's handbook. Covers CFMOTO 250NK (CF250-B) / 300NK (CF300-B) owner's manual (cover prints 250NK); no model year printed.

111 items for a 2021 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: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, shim adjusted (incl. desmo)
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: Shares engine oil
Clutch control: Hand lever, cable
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

2021 CFMoto 250NK

On the road: every 300 km

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

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 1,000 km

20 items

Bolts and nuts (break-in inspect)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect for fastness. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Coolant level, coolant, radiator fan and coolant hoses (break-in inspect)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Diagnostic connector (break-in read)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), read with diagnostic tool. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Electrical parts functions (break-in check)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Engine oil and oil filter (break-in replace)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Fuses or circuit breakers (break-in check)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Idle (break-in inspect)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Moving parts (break-in lubricate and inspect)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), lubricate and inspect for flexibility. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Throttle system (break-in check)

Engine

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Battery (break-in inspect)

Ignition and electrics

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Drive chain and sprockets (break-in inspect and adjust)

Final drive

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect and adjust. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Rear shock absorber and front forks (break-in inspect)

Front end

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect for leaking. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Steering bearings (break-in inspect)

Front end

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake discs (break-in check)

Brakes

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake fluid level (break-in check)

Brakes

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake hoses (break-in inspect)

Brakes

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect for damage and sealing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake lever (break-in free play)

Brakes

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect for free play. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake pads (break-in inspect)

Brakes

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Tire condition, tire pressure and wheel bearings (break-in inspect)

Wheels and tires

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Cables and wires (break-in inspect)

Controls and cables

Factory

Factory: Break-in maintenance schedule (printed pp.99-101), service whichever interval comes first: at 600 mi (1000 km), inspect for damage, bending and routing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 5,000 km or 6 months

2 items

Fuses or circuit breakers (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km) or 6 months. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Battery (inspect)

Ignition and electrics

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km) or 6 months; inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 5,000 km or 12 months

10 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
Cables and wires (inspect)

Controls and cables

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 3000 mi (5000 km) and 24M or 9000 mi (15000 km); inspect for damage, bending and routing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 5,000 km

7 items

Engine oil and oil filter (replace)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Oil strainer (clean)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); clean. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Spark plug (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Throttle system (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Throttle valve (clean)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); clean. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Air filter element (clean)

Fuel and air

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); clean. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Clutch (inspect)

Primary and gearbox

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 3000 mi (5000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 8,000 km or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 9,500 km 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 km or 12 months

21 items

Bolts and nuts (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 48M or 18000 mi (30000 km); inspect for fastness. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Coolant (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Coolant hoses (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 48M or 18000 mi (30000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Coolant level (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Diagnosis connector (read)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); read with diagnostic tool. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Electrical parts functions (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 6000 mi (10000 km) or 12 months. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Moving parts (lubricate and inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 48M or 18000 mi (30000 km); lubricate and inspect for flexibility. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Pipes, ducts, hoses and sleeves (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 48M or 18000 mi (30000 km); inspect for cracks, sealing and routing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Radiator fan function (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Wires (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 6000 mi (10000 km) or 12 months; inspect for damage, bending and routing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Chain, rear sprocket and engine sprocket (inspect)

Final drive

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Rear shock absorber and front forks (inspect)

Front end

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect for leaking and maintain as required. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Steering bearings (inspect)

Front end

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake discs (inspect)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake fluid level (check)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake hoses (inspect)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect for damage and sealing. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake lever (free play)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect for free play. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Brake pads (inspect)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Front and rear brake system (check)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Tire condition (check)

Wheels and tires

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Tire pressure (inspect)

Wheels and tires

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 12M or 6000 mi (10000 km) and 24M or 12000 mi (20000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 10,000 km

5 items

Idle (check)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 6000 mi (10000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Spark plug (replace)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 6000 mi (10000 km); replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Suspension system (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 6000 mi (10000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Swing arm (inspect)

Rear suspension and frame

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 6000 mi (10000 km) and 18000 mi (30000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
Wheel bearings (check)

Wheels and tires

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: printed as two interval lines, 6000 mi (10000 km) and 18000 mi (30000 km). Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 16,000 km or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 19,500 km 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 20,000 km or 2 years

1 item

Air filter element (replace)

Fuel and air

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 12000 mi (20000 km) or 24 months; replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

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 24,000 km or 4 years

1 item

Check valve clearances (shim adjusted)

Engine

Guideline

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 30,000 km

1 item

Frame (inspect)

Rear suspension and frame

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 18000 mi (30000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

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 35,000 km or 2 years

1 item

Coolant (replace)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 21000 mi (35000 km) or 24 months; replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 40,000 km

1 item

Valve clearance (inspect)

Engine

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 24000 mi (40000 km); inspect. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

5 items

Replace coolant

Engine

Guideline
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Brake fluid (replace)

Brakes

Factory

Factory: Periodic maintenance schedule (printed pp.102-107), service whichever interval comes first: every 24 months; replace. Marked items: reduce the interval by 50% under severe use (triangle); have an authorised dealer perform the work (square).
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.