Harley-Davidson Nightster Special 2025 Maintenance Schedule
The 2025 Harley-Davidson Nightster Special maintenance schedule below covers the manufacturer's recommended service intervals for oil, battery, tires, general maintenance, coolant, spark plugs, air filter and brake fluid. Intervals are shown in kilometres by default and can be switched to miles.
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Sourced from Harley-Davidson 2022 Sportster RH Models Owner's Manual (94000998) — "Regular Service Intervals: Harley-Davidson Sportster RH Models" table (Table 45) (this document covers model years 2022–2025): 1903shop.de
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Engine oil and filter replacement | Every 8,000 km (first at 1,600 km) · Every 12 months | Easy | Drain engine oil, replace oil filter cartridge, and refill with recommended 15W-50 synthetic engine oil. |
| 12V battery inspection and terminal cleaning | Every 12 months | Easy | Check battery, terminal torque, and clean connections; lubricate terminals with electrical contact lubricant. |
| Front and rear tire pressure and tread inspection | Every 8,000 km (first at 1,600 km) · Every 12 months | Easy | Check cold tire pressures, tread wear, and inspect wheels for damage. |
| Brake and fuel-line system inspection (leaks, fluid level, pads/discs) | Every 8,000 km (first at 1,600 km) · Every 12 months | Easy | Inspect brake system and fuel lines/fittings for leaks, check front and rear brake fluid level and DOT 4 moisture content, and inspect brake pads and discs for wear. |
| Steering head bearing service, handlebar clamp torque check, and front fork rebuild | Every 16,000 km (first at 1,600 km) | Professional | Adjust and periodically lubricate steering head bearings, torque-check clutch lever/master cylinder handlebar clamp screws, and disassemble/inspect/rebuild front forks (replace fork oil) at the extended interval. |
| Exhaust system inspection | Every 8,000 km · Every 12 months | Easy | Inspect exhaust system, fasteners, and heat shields for leaks, cracks, or looseness. |
| Engine coolant replacement | Every 48,000 km · Replace every 48,000 km | Professional | Drain cooling system, flush, and refill with fresh Harley-Davidson coolant. |
| Radiator and oil cooler cleaning, cooling system inspection | Every 8,000 km | Easy | Clean radiators and oil cooler; inspect cooling system. |
| Spark plug replacement | Every 16,000 km · Every 24 months · Replace every 16,000 km · Replace every 24 months | Easy | Replace spark plugs with specified Revolution Max spark plugs. |
| Air filter element inspection | Every 8,000 km | Easy | Inspect air cleaner filter and service as required. |
| Final drive belt and sprocket inspection and adjustment | Every 8,000 km (first at 1,600 km) | Moderate | Inspect drive belt for cracking, missing teeth, and wear; measure and adjust belt tension using a sonic tension tool. |
| Brake fluid flush and replacement | Every 24 months · Replace every 24 months | Moderate | Flush front and rear hydraulic brake fluid and perform ABS bleed procedure. |
| Chassis lubrication (jiffy stand, clutch adjustment, controls) and road test | Every 8,000 km | Easy | Lubricate jiffy stand/centerstand, adjust clutch system, lubricate brake and clutch controls (Harley Lube), and road test to verify component and system functions. |
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Easy: basic tools, straightforward Easy–Moderate: varies by task — somewhere between the two Moderate: some mechanical know-how helps Advanced: specialized tools/skill, still DIY-doable Expert: significant experience required Professional: dealer or shop recommended
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