Contents
Contents
MOTORCYCLE SAFETY............................. 1
Important Safety Information ........................... 2
Important Safety Precautions ........................ 2
Accessories & Modifications ........................... 3
Accessories & Modifications ........................ 3
Off-Road Safety ............................................... 4
Off-Road Safety ............................................ 4
Safety Labels .................................................... 5
INSTRUMENTS & CONTROLS.................. 7
Operation Component Locations ...................... 8
Indicators & Displays ....................................... 9
Multi-function Display................................ 10
Speedometer ................................................ 12
Odometer/Tripmeter A & B ........................ 12
Fuel Mileage Meter ..................................... 12
Digital Clock Setting................................... 13
Backlight Brightness Adjustment................ 13
Changing the Speed and Mileage Unit........ 14
Changing the Fuel Mileage Unit ................. 14
Controls & Features ........................................ 15
Ignition Switch ............................................ 15
Start Button ................................................. 15
Engine Stop Switch ..................................... 15
Headlight Dimmer Switch........................... 15
Passing Light Control Switch...................... 15
Turn Signal Switch...................................... 15
Horn Button................................................. 15
BEFORE RIDING......................................... 17
Are You Ready to Ride? ................................ 18
Always carry this manual and tool kit......... 18
Protective Apparel....................................... 18
Rider Training ............................................. 18
Is Your Motorcycle Ready to Ride? ............... 19
Pre-ride Inspection ...................................... 19
Load Limits & Guidelines .............................. 21
Loading........................................................ 21
Load Limits ................................................. 21
Loading Guidelines ..................................... 21
BASIC OPERATING INSTRUCTIONS.....23
Basic Operating Instructions ...........................24
Safe Riding Precautions...............................24
Carbon Monoxide Hazard............................24
Starting & Stopping the Engine ......................25
Fast Idle Knob..............................................25
Preparation ...................................................25
Starting Procedure........................................25
Bank Angle Sensor Ignition Cut-off System...26
How to Stop the Engine...............................26
Shifting Gears .................................................27
Braking ............................................................28
Parking ............................................................29
Theft-prevention Tips ..................................29
Break-in Guidelines ........................................30
SERVICING YOUR HONDA ......................31
The Importance of Maintenance .....................32
Maintenance Safety .........................................33
Important Safety Precautions.......................33
Periodic Maintenance ......................................34
Maintenance Schedule ....................................35
Maintenance Record (On-Road Use Only) .....38
General Competition Maintenance
(Off-Road Use Only) ......................................39
Before & After Competition Maintenance
(Off-Road Use Only) ......................................43
Between Races & Practice Maintenance .....43
After Competition Maintenance ..................44
Service Preparations
Maintenance Component Locations ...............45
Seat ..................................................................46
Side Cover .......................................................47
Fuel Tank ........................................................48
Subframe .........................................................52
Service Procedures
Fluids & Filters
Fuel System ....................................................60
Fuel.............................................................. 60
Refueling Procedure.................................... 60
Fuel Line Inspection.................................... 61
Fuel Line Replacement................................ 61
Fuel Pump Filter Replacement.................... 63
Fuel Pressure Increasing.............................. 68
Engine Oil ....................................................... 69
Oil Recommendation................................... 69
Checking & Adding Oil .............................. 70
Changing Engine Oil & Filter ..................... 70
Coolant ........................................................... 72
Coolant Recommendation ........................... 72
Checking & Adding Coolant....................... 72
Cooling System Inspection.......................... 73
Coolant Replacement .................................. 73
Cooling System Bleed Air........................... 74
Air Cleaner ..................................................... 75
Cleaning....................................................... 75
Crankcase Breather ......................................... 77
Draining....................................................... 77
Engine
Throttle ........................................................... 78
Throttle Freeplay ......................................... 78
Throttle Inspection ...................................... 79
Throttle Cable Lubrication .......................... 79
Engine Idle Speed ........................................... 80
Idle Speed Adjustment ................................ 80
Clutch System ................................................. 81
Clutch Lever Freeplay................................. 81
Other Inspections......................................... 82
Clutch Operation ......................................... 82
Clutch Cable Lubrication ............................ 82
Clutch Disc/Plate Removal ......................... 83
Clutch Disc/Plate/Spring Inspection ........... 84
Clutch Disc/Plate Installation...................... 84
Spark Plug ...................................................... 86
Spark Plug Recommendation ...................... 86
Spark Plug Inspection & Replacement........ 86
2019 CRF450L
31MKE900
MOM 16640 (1803)
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