Honda CRF450RL 2021 Owner's Manual & Off-Road Handbook page 34

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Maintenance
MAINTENANCE SCHEDULE - OFF-ROAD USE
Perform the PRE-RIDE INSPECTION in the Owner's Manual at each scheduled maintenance period.
I: Inspect and clean, adjust, lubricate or replace if necessary. C: Clean. R: Replace. A: Adjust. L: Lubricate.
FREQUENCY
ITEMS
FUEL LINE
FUEL PUMP FILTER
THROTTLE OPERATION
AIR CLEANER
CRANKCASE BREATHER
SPARK PLUG
VALVE CLEARANCE/
DECOMPRESSOR SYSTEM
ENGINE OIL
ENGINE OIL FILTER
ENGINE IDLE SPEED
PISTON AND PISTON RINGS
PISTON PIN
RADIATOR COOLANT
COOLING SYSTEM
DRIVE CHAIN
DRIVE CHAIN SLIDER
DRIVE CHAIN ROLLER
DRIVE SPROCKET
DRIVEN SPROCKET
BRAKE FLUID
BRAKE PADS WEAR
BRAKE SYSTEM
CLUTCH SYSTEM
CONTROL CABLES
EXHAUST PIPE/MUFFLER
SUSPENSION
SWINGARM/SHOCK LINKAGE
FORK OIL
NUTS, BOLTS, FASTENERS
WHEELS/TIRES
STEERING HEAD BEARINGS
SIDESTAND
This maintenance schedule is based upon average riding conditions. Machine subjected to severe use require more frequent
servicing.
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.
2-8
Each race or about
NOTE
3.5 hours
NOTE 6 I
NOTE 6
I
NOTE 1 C
I
I
NOTE 4
NOTE 3
I
NOTE 5
NOTE 3
I
NOTE 2 I
I
I, L
I
I
I
I
NOTE 2 I
I
I
NOTE 5 I
I, L
I
I
NOTE 3
I
I
I
Every 4 race or Every 8 race or
about 15.0 hours about 30.0 hours
R
L
REFER TO
PAGE

R 2-10

R 2-13

2-18

2-18

2-20

2-23

I 2-24

R 2-32

R 2-34

2-35

R 2-35

R 2-35

2-44

2-46

2-47

2-50

2-51

2-51

2-51

2-52

2-53

2-54

2-55

2-60

1-15

2-62

2-63

R 2-63

2-82

2-82

I 2-82

2-62