2021-2024 Honda CRF450RMaintenance schedule
Motocross - 450cc four-stroke
Scheduled against motos ridden / engine running hours.
Verified
Open the hour meter toolEvery interval on this page was read directly from the OEM chart.
Intervals
- Each moto or about 2.5 hours
- Every 3 motos or about 7.5 hours
- Every 6 motos or about 15.0 hours
- Every 9 motos or about 22.5 hours
- Every 12 motos or about 30.0 hours
Full schedule (35 items)
| Item | Action | Interval |
|---|---|---|
Air Filter | Clean | Every 2.5 hrs |
Brake Fluid | Inspect | Every 2.5 hrs |
Brake Pads Wear | Inspect | Every 2.5 hrs |
Brake System | Inspect | Every 2.5 hrs |
Clutch Fluid | Inspect | Every 2.5 hrs |
Clutch System | Inspect | Every 2.5 hrs |
Control Cables | Inspect, Lubricate | Every 2.5 hrs |
Cooling System | Inspect | Every 2.5 hrs |
Crankcase Breather | Inspect | Every 2.5 hrs |
Drive Chain | Inspect, Lubricate | Every 2.5 hrs |
Drive Chain Roller | Inspect | Every 2.5 hrs |
Drive Chain Slider | Inspect | Every 2.5 hrs |
Drive Sprocket | Inspect | Every 2.5 hrs |
Driven Sprocket | Inspect | Every 2.5 hrs |
Engine Idle Speed | Inspect | Every 2.5 hrs |
Engine Oil | Inspect | Every 2.5 hrs |
Exhaust Pipe/Muffler | Inspect | Every 2.5 hrs |
Fuel Line | Inspect | Every 2.5 hrs |
Nuts, Bolts, Fasteners | Inspect | Every 2.5 hrs |
Radiator Coolant | Inspect | Every 2.5 hrs |
Spark Plug | Inspect | Every 2.5 hrs |
Suspension | Inspect | Every 2.5 hrs |
Throttle Operation | Inspect | Every 2.5 hrs |
Wheels/Tires | Inspect | Every 2.5 hrs |
Drive Chain | Replace | Every 7.5 hrs |
Swingarm/Shock Linkage | Lubricate | Every 7.5 hrs |
Engine Oil | Replace | Every 15 hrs |
Engine Oil Filter | Replace | Every 15 hrs |
Piston and Piston Rings | Replace | Every 15 hrs |
Piston Pin | Replace | Every 15 hrs |
Valve Clearance/Decompressor System | Inspect | Every 15 hrs |
Fork Oil | Replace | Every 22.5 hrs |
Steering Head Bearings | Inspect | Every 22.5 hrs |
Fuel Line | Replace | Every 30 hrs |
Fuel Pump Filter | Replace | Every 30 hrs |
Every row above is factory schedule, straight from the chart. Intervals are shown in hrs.
Legend
- I — Inspect (clean, adjust, lubricate, or replace, if necessary)
- L — Lubricate
- R — Replace
- C — Clean
Chart notes
- 1. Clean after every moto for dusty riding condition.
- 2. Replace every 2 years. Replacement requires mechanical skill.
- 3. Replace after the first break-in ride.
- 4. Inspect after the first break-in ride.
- 5. Replace the engine oil, if the clutch discs and plates are replaced.
- 6. Replace every year.
From the manual
- Perform the Pre-ride Inspection at each scheduled maintenance period.
- This maintenance schedule is based upon average riding conditions. Machines subjected to severe use require more frequent servicing.
Source: 2023 CRF450R-S Owner's Manual (41MKE6100_enu) · Chart read from the 2023 manual. Intervals change between model years — confirm against yours.
Always confirm intervals, torque specs and part numbers against your own service manual. This site is a shopping aid, not a repair manual.
Open the hour meter tool