Servicing Your Honda - Honda CRF450X 2020 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 CRF 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 Service Manual
(page 182).
For information about the exhaust emission and
noise emission requirements of the U.S.
Environmental Protection Agency (EPA) and the
California Air Resouses Board (CARB), see
page 173.
Maintenance, replacement or repair of the
emission control devices and systems may be
performed by any motorcycle repair
establishment or individual using parts that are
"certified" to EPA standards.
An optional tool kit may be available. Check with
your dealer's parts department.
Before You Service Your Honda
The Importance of Maintenance ......................30
Maintenance Safety..........................................31
Important Safety Precautions.......................31
Maintenance Schedule .....................................32
General Competition Maintenance ..................36
Before & After Competition Maintenance ......40
Between Motos & Practice Maintenance.....40
After Competition Maintenance ..................41
Service Preparations
Maintenance Component Locations ................42
Seat...................................................................43
Side Cover........................................................44
Fuel Tank .........................................................45
Subframe ..........................................................49
Service Procedures
Fluids & Filters
Fuel System......................................................54
Engine Oil ........................................................63
Coolant.............................................................66
Air Cleaner.......................................................69
Crankcase Breather ..........................................71
Engine
Throttle.............................................................72
Engine Idle Speed ............................................74
Clutch System ..................................................75
Spark Plug........................................................80
Valve Clearance ...............................................81
Piston/Piston Rings/Piston Pin.........................90
Servicing Your Honda
Chassis
Suspension....................................................... 99
Front Suspension Inspection ....................... 99
Rear Suspension Inspection....................... 115
Brakes ............................................................ 116
Wheels ........................................................... 120
Tires & Tubes ................................................ 121
Side Stand ...................................................... 123
Drive Chain ................................................... 124
Exhaust Pipe/Muffler..................................... 127
Spark Arrester................................................ 129
Additional Maintenance Procedures.............. 131
Electrical
Battery ........................................................... 133
Headlight & Taillight .................................... 135
Appearance Care ........................................... 136
Servicing Your Honda
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