Servicing Your Honda; Before You Service Your Honda - Honda CRF450RX 2019 Owner's Manual & Competition Handbook

Servicing Your Honda

Keeping your CRF well maintained is absolutely
essential to your safety. It's also a good way to
protect your investment, get maximum
performance, avoid breakdowns, and have more
fun.
To help keep your CRF in good shape, this section
includes a Maintenance Schedule for required
servicing and step-by-step instructions for specific
maintenance tasks. You'll also find important
safety precautions, information on oils, and tips for
keeping your Honda looking good.
An ECM system is used on this motorcycle;
consequently, routine ignition timing adjustment is
unnecessary. If you want to check the ignition
timing, refer to an official Honda Shop Manual.
An optional tool kit may be available. Check with
your dealer's parts department.

Before You Service Your Honda

The Importance of Maintenance ......................26
Maintenance Safety..........................................27
Important Safety Precautions.......................27
Maintenance Schedule .....................................28
General Competition Maintenance ..................31
Before & After Competition Maintenance ......35
Between Races (CRF450RX)/Heats
(CRF450R) & Practice Maintenance...........35
After Competition Maintenance ..................36
Service Preparations
Maintenance Component Locations ................37
Seat...................................................................38
Fuel Tank (CRF450RX) ..................................39
Fuel Tank (CRF450R) .....................................41
Subframe ..........................................................43
Service Procedures
Fluids & Filters
Fuel System (CRF450RX)...............................46
Fuel System (CRF450R)..................................56
Engine Oil ........................................................66
Coolant.............................................................69
Air Cleaner.......................................................71
Crankcase Breather ..........................................73
Engine
Throttle.............................................................74
Engine Idle Speed ............................................76
Clutch System ..................................................77
Spark Plug........................................................82
Valve Clearance ...............................................83
Piston/Piston Rings/Piston Pin.........................92
Servicing Your Honda
Chassis
Suspension..................................................... 101
Front Suspension Inspection ..................... 101
Front Suspension Removal........................ 102
Recommended Fork Oil ............................ 104
Fork Outer Tube Disassembly................... 104
Fork Oil Refilling ...................................... 105
Front Suspension Installation .................... 106
Fork Damper Disassembly ........................ 109
Damper Oil Change................................... 111
Fork Damper Installation........................... 114
Rear Suspension Inspection....................... 117
Brakes ............................................................ 118
Wheels ........................................................... 122
Tyres & Tubes ............................................... 123
Side Stand (CRF450RX) ............................... 125
Drive Chain ................................................... 126
Exhaust Pipe/Muffler..................................... 130
Additional Maintenance Procedures.............. 134
Electrical
Battery ........................................................... 136
Appearance Care ........................................... 138
Servicing Your Honda
25