Harley-Davidson · Modern belt-drive cruiser (2000-)

Sportster S / Nightster (Revolution Max)

Library entry covers 2021-2026

14 factory 31 guideline

Published source

Harley-Davidson Maintenance Tables (file 2022-01-26 English 2022 Maintenance Tables; factory document, third-party hosted copy), Table 7-1

Factory factory bulletin. Covers 2022 tables, Sportster S (RH) models, Table 7-1.

Open the source

45 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: Hydraulic lifters (no routine clearance adjustment)
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: Toothed belt
Front suspension: Telescopic fork
Rear suspension: Swingarm, twin shocks
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2021 Harley-Davidson Sportster S / Nightster (Revolution Max)

On the road: every 200 mi

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 300 mi

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

On the road: every 500 mi

1 item

Check coolant level

Pre-ride / on the road

Guideline

Every 3,000 mi or 12 months

5 items

Check throttle cable(s) free play and return

Fuel and air

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
Check wheel bearings for play

Wheels and tires

Guideline

Every 4,000 mi or 12 months

1 item

Inspect, clean and gap spark plugs

Engine

Guideline

Every 5,000 mi or 12 months

3 items

Change engine oil

Engine

Factory

Manual: Engine oil and filter: replace. Factory: Cols 1,000 mi/1,600 km then every 5,000 mi/8,000 km to 50,000 mi. Annually.
Replace oil filter

Engine

Factory

Manual: Engine oil and filter: replace. Factory: Every column; annually (fn 1).
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Tire pressure and tread: check. Factory: Every column; annually.

Every 5,000 mi

6 items

Clean / inspect air filter

Fuel and air

Factory

Manual: Air cleaner filter: inspect. Factory: Every column; more often in severe use.
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch system: adjust. Factory: Every column.
Inspect drive belt, pulleys and tension

Final drive

Factory

Manual: Drive belt and sprockets: inspect; drive belt: adjust. Factory: Every column.
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Jiffy stand: lubricate. Factory: Every column.
Check brake pads and discs

Brakes

Factory

Manual: Brake pads and discs: inspect. Factory: Every column.
Lubricate control cables and lever pivots

Controls and cables

Factory

Manual: Brake and clutch controls: lubricate. Factory: Every column; HARLEY LUBE.

Every 6,000 mi or 12 months

5 items

Inspect coolant hoses and clamps

Engine

Guideline
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 speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 10,000 mi or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Replace spark plugs

Engine

Factory

Manual: Spark plugs: replace. Factory: Every two years or 10,000 mi, whichever first.

Every 12,000 mi or 2 years

3 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 20,000 mi or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 25,000 mi or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 30,000 mi or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 30,000 mi

1 item

Replace coolant

Engine

Factory

Manual: Coolant: replace. Factory: Text row.

Every 50,000 mi

2 items

Replace drive belt (wear or damage based)

Final drive

Guideline
Change fork oil

Front end

Factory

Manual: Front forks: rebuild and replace fork oil. Factory: Text row.

Every 12 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: 12 volt battery: check. Factory: Annually.

Every 2 years

3 items

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

Factory

Manual: Flush brake systems, replace DOT 4 fluid. Factory: Every two years, or sooner if moisture 3 percent or more.

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.