2002-2008 Honda CRF450RMaintenance schedule
Motocross - 450cc four-stroke
Scheduled against races ridden and engine running hours.
Verified
Open the hour meter toolEvery interval on this page was read directly from the OEM chart.
Intervals
- Each race or about 2.5 hours
- Every 3 races or about 7.5 hours
- Every 6 races or about 15.0 hours
- Every 9 races or about 22.5 hours
- Every 12 races or about 30.0 hours
Full schedule (31 items)
| Item | Action | Interval |
|---|---|---|
AIR FILTER (NOTE 1) | Clean | Every 2.5 hrs |
BRAKE FLUID (NOTE 2) | Inspect | Every 2.5 hrs |
BRAKE PADS WEAR | Inspect | Every 2.5 hrs |
BRAKE SYSTEM | Inspect | Every 2.5 hrs |
CLUTCH SYSTEM | Inspect | Every 2.5 hrs |
COOLING SYSTEM | Inspect | Every 2.5 hrs |
CRANKCASE BREATHER | Inspect | 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 |
EXHAUST PIPE/MUFFLER | Inspect | Every 2.5 hrs |
HOT START SYSTEM | Inspect | Every 2.5 hrs |
NUTS, BOLTS, FASTENERS | Inspect | Every 2.5 hrs |
RADIATOR COOLANT (NOTE 2) | 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 |
FORK TUBE/SLIDER (NOTE 3) FORK OIL | Replace | Every 7.5 hrs |
SWINGARM/SHOCK LINKAGE | Lubricate | Every 7.5 hrs |
ENGINE OIL (NOTE 3) | Replace | Every 15 hrs |
ENGINE OIL FILTER (NOTE 3) | Replace | Every 15 hrs |
PISTON AND PISTON RINGS | Replace | Every 15 hrs |
TRANSMISSION OIL | Replace | Every 15 hrs |
VALVE CLEARANCE / DECOMPRESSOR SYSTEM (NOTE 4) | Inspect | Every 15 hrs |
FORK OIL DAMPER | Replace | Every 22.5 hrs |
STEERING HEAD BEARINGS | Inspect | Every 22.5 hrs |
PISTON PIN | Replace | Every 30 hrs |
Every row above is factory schedule, straight from the chart. Intervals are shown in hrs.
Specs
From the 2005 manual's technical data section. Check yours before buying — these change between model years.
- Displacement
- 27.41 cu-in 449.4 cm3
- Compression ratio
- 12.0 : 1
- Spark plug
- maintenance
Legend
- I — Inspect and clean, adjust, lubricate or replace if necessary
- C — Clean
- R — Replace
- A — Adjust
- L — Lubricate
From the manual
- Perform the Pre-ride Inspection at each scheduled maintenance period.
- This maintenance schedule is based on average riding conditions; machines subjected to severe use require more frequent servicing.
- Honda recommends the items in this schedule be serviced by referring to the official Honda Service Manual.
Source: 2005 Honda CRF450R Owner's Manual & Competition Handbook · Chart read from the 2005 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