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

Svartpilen 401

Library entry covers 2018-2024

28 factory 52 guideline

Published source

Husqvarna Owner's Manual 2020 Svartpilen 401 (Art. no. 3402394en), Service Schedule

Factory source. Covers 2018-2024 (book is the 2020 owner's manual).

80 items for a 2018 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: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2018 Husqvarna Svartpilen 401

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 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

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 spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

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 7,500 km or 12 months

19 items

Antifreeze (check) - recommended

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months.
Coolant level and radiator fan function (check)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Drainage hoses (empty); all hoses and sleeves (check) - recommended

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 48 months.
Electrical system function (check)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Engine oil and oil filter (change); oil screens (clean)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Fault memory (read out with diagnostics tool)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Final check and test ride; fault memory read-out; service interval display (set)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Rim run-out (check)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Safety-relevant screws and nuts (check tightness) - recommended

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 48 months.
Chain tension (check)

Final drive

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Chain, rear sprocket and engine sprocket (check)

Final drive

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 7,500 km or 12 months / every 24 months.
Moving parts: side stand, hand lever, chain (grease, check) - recommended

Final drive

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 48 months.
Shock absorber and fork leaks (check)

Front end

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Steering head bearing play (check)

Front end

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Brake discs, front and rear brake linings, brake lines (check)

Brakes

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Front and rear brake fluid level (check)

Brakes

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months.
Spokes (retighten after 1,000 km; check tension)

Wheels and tires

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Retighten after 1,000 km; check tension every 7,500 km, every 12 and 24 months.
Tire condition and pressure (check)

Wheels and tires

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.
Throttle cables and other cables: damage, routing, setting (check)

Controls and cables

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km or 12 months / every 24 months.

Every 7,500 km

5 items

Headlight setting (check)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km.
Shift shaft sensor (program)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. After 1,000 km, then every 7,500 km.
Air filter (change); air filter box (clean)

Fuel and air

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 7,500 km.
Fork bearing and wheel bearing play (check) - recommended

Front end

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 7,500 km.
Fork leg dust boots (clean)

Front end

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 7,500 km.

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 15,000 km

1 item

Valve clearance (check); spark plug (change)

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 15,000 km.

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 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 and link fork (check) - recommended

Front end

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 30,000 km.

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 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 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
Front and rear brake fluid (change)

Brakes

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 24 months.
Replace brake fluid

Brakes

Guideline

Every 4 years

4 items

Coolant (change) - recommended

Engine

Factory

Factory: Service schedule (Husqvarna OWNER'S MANUAL 2020 SVARTPILEN 401, Art. no. 3402394en, chapter 10, printed pp.108-111). Required work columns: after 1,000 km (one-time), every 7,500 km, every 15,000 km, every 12 months, every 24 months; recommended work columns: after 1,000 km, every 7,500 km, every 30,000 km, every 12 months, every 48 months. Different intervals may apply by country. Every 48 months.
Replace fuel lines

Fuel and air

Guideline

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

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

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