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Husqvarna · Two-stroke single, premix, chain drive

WR 250

Library entry covers 1987-2013

25 factory 54 guideline

Published source

Husqvarna WR 250/2002 owner's manual (also CR 250 and WR 360, 2002; multilingual), maintenance table printed p.84 and 86 (manualslib.de 1010297 p.84, 86)

Factory owner's handbook. Covers Husqvarna 2002 owner's manual for WR 250, CR 250 and WR 360 (2002 models only).

79 items for a 1989 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, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

1989 Husqvarna WR 250

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 1 month

1 item

Check battery electrolyte, top up with distilled water

Ignition and electrics

Guideline

Wet-cell batteries on old machines need regular topping up, more in hot weather.

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

12 items

Check throttle cable(s) free play and return

Fuel and air

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 fuel tap filter / sediment bowl

Fuel and air

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 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

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 9,500 km or 12 months

7 items

Inspect coolant hoses and clamps

Engine

Guideline
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 9,500 km or 2 years

1 item

Change gearbox oil

Primary and gearbox

Guideline

Every 13,000 km or 2 years

1 item

Replace spark plugs

Engine

Guideline

Every 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change fork oil

Front end

Guideline

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

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 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 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 12 months

1 item

Check speedometer / odometer against a known distance

Controls and cables

Guideline

Old speedos drift with tire size and drive wear. Use phone GPS over a measured 10 miles / km.

Every 2 years

4 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
Replace brake fluid

Brakes

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

No interval set

25 items

Bolt and nut tightness (check)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Coolant (replace)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. When required.
Coolant level (check)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Muffler deadening material (check)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Muffler deadening material (replace)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every 2 competitions.
Rear suspension articulated joints (check wear)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Rear suspension linkage (lubricate)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Spark plug (clean and check)

Engine

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Air filter (clean)

Fuel and air

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Air filter (replace)

Fuel and air

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. When required.
Carburetor (check and adjust)

Fuel and air

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Clutch (check and adjust)

Primary and gearbox

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Clutch and throttle cables (check)

Primary and gearbox

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Gearbox oil (replace)

Primary and gearbox

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every 5 competitions.
Drive sprocket, rear sprocket and chain (check)

Final drive

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Drive sprocket, rear sprocket and chain (replace)

Final drive

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every 5 competitions.
Secondary transmission chain (adjust)

Final drive

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Frame and fork (check)

Front end

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Front fork and rear shock absorber (adjust)

Front end

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Steering bearings (lubricate)

Front end

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every 5 competitions.
Steering bearings end play (check)

Front end

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Swing arm bearings (lubricate)

Rear suspension and frame

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Brake fluid (replace)

Brakes

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every 10 competitions.
Brake pad wear and brake fluid level (check)

Brakes

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.
Spokes, wheels and rim runout (check)

Wheels and tires

Factory

Factory: Maintenance table (Husqvarna WR 250 / CR 250 / WR 360 2002 owner's manual, printed p.84 and 86; columns: every competition, every 2 competitions, every 5 competitions, every 10 competitions, when required). Intervals are counted in competitions (races), not distance or hours. Every competition.

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.