Contents
MOTORCYCLE SAFETY............................. 1
Important Safety Information ........................... 2
Important Safety Precautions ........................ 2
Accessories & Modifications ........................... 3
Safety Labels .................................................... 4
INSTRUMENTS & CONTROLS.................. 5
Operation Component Locations ...................... 6
MIL (Malfunction Indicator Lamp) ................. 7
MIL Blink Pattern ......................................... 7
Current DTC/Freeze DTC............................. 7
Circuit Inspection.......................................... 8
DTC Index..................................................... 9
Engine Mode & Launch Control System Indicator
& Torque Control Indicator ............................ 10
Engine Mode Indicator................................ 10
Launch Control System Indicator ............... 10
Torque Control Indicator............................. 10
BEFORE RIDING......................................... 11
Are You Ready to Ride? ................................ 12
Is Your Motorcycle Ready to Ride? ............... 13
Pre-ride Inspection ...................................... 13
BASIC OPERATING INSTRUCTIONS.... 15
Safe Riding Precautions .............................. 16
Side Stand (CRF450RX)............................. 16
Honda Selectable Torque Control............... 16
Starting & Stopping the Engine ...................... 17
Fast Idle Knob............................................. 17
Preparation .................................................. 17
Starting Procedure....................................... 17
How to Stop the Engine .............................. 18
Parking (CRF450RX) ..................................... 19
Break-in Guidelines ........................................ 20
SERVICING YOUR HONDA ......................21
Before You Service Your Honda
The Importance of Maintenance .....................22
Maintenance Safety .........................................23
Important Safety Precautions.......................23
Maintenance Schedule ....................................24
Maintenance Schedule (CRF450RX) .............25
Maintenance Schedule (CRF450R/RWE) ......26
General Competition Maintenance .................27
Before & After Competition Maintenance .....31
Between Races (CRF450RX)/Motos
(CRF450R/RWE) & Practice Maintenance
...31
After Competition Maintenance ..................32
Service Preparations
Maintenance Component Locations ...............33
Seat ..................................................................34
Fuel Tank (CRF450RX) .................................35
Fuel Tank (CRF450R/RWE) ..........................37
Subframe .........................................................39
Service Procedures
Fluids & Filters
Fuel System (CRF450RX) ..............................42
Fuel System (CRF450R/RWE) .......................52
Engine Oil .......................................................62
Coolant ............................................................65
Air Cleaner ......................................................67
Crankcase Breather .........................................69
Engine
Throttle ............................................................70
Engine Idle Speed ...........................................72
Clutch System .................................................73
Spark Plug .......................................................78
Valve Clearance ..............................................79
Piston/Piston Rings/Piston Pin ........................88
Chassis
Suspension ...................................................... 97
Brakes ........................................................... 114
Wheels .......................................................... 118
Tires & Tubes ............................................... 119
Side Stand (CRF450RX) .............................. 121
Drive Chain .................................................. 122
Exhaust Pipe/Muffler .................................... 126
Additional Maintenance Procedures ............. 132
Electrical
Battery .......................................................... 134
Appearance Care .......................................... 136
2020 CRF450R/RX/RWE
31MKE630
MOM 17046 (1901)
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