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2012
Honda CRF250R
OWNER’S MANUAL & COMPETITION HANDBOOK
Introduction
Congratulations on choosing your Honda CRF
motocross motorcycle.
When you own a Honda, you’re part of a
worldwide family of satisfied customers – people
who appreciate Honda’s reputation for building
quality into every product.
Your CRF is a high performance racing
motorcycle that utilizes the latest motocross
technology and is intended for competition use in
sanctioned, closed-course events by experienced
riders only.
Be aware that motocross is a physically
demanding sport that requires more than just a
fine motorcycle. To do well, you must be in
excellent physical condition and be a skillful
rider. For the best results, work diligently on
your physical conditioning and practice
frequently.
Before riding, take time to get acquainted with
your CRF and how it works. To protect your
investment, we urge you to take responsibility for
keeping your CRF well maintained. Scheduled
service is a must, of course. But it’s just as
important to observe the break-in guidelines, and
perform all the pre-ride and other periodic checks
detailed in this manual.
You should also read the owner’s manual before
you ride. It’s full of facts, instructions, safety
information, and helpful tips. To make it easy to
use, the manual contains a table of contents, a
detailed list of topics at the beginning of each
section, and an index at the back of the book.
As you read this manual, you will find
information that is preceded by a
NOTICE
symbol. This information is intended to help you
avoid damage to your CRF, other property, or the
environment.
Unless you are mechanically qualified and have
the proper tools, you should see your dealer for
the service and adjustment procedures discussed
in this manual.
An official Honda Service Manual for your CRF
is available (page 160). It is the same manual
your dealer uses. If you plan to do any service
on your CRF beyond the standard maintenance
procedures in this manual, you will find an
official Honda Service Manual a valuable
reference.
If you have any questions, or if you ever need a
special service or repairs, remember that your
dealer knows your CRF best and is dedicated to
your complete satisfaction.
Please report any change of address or ownership
to your dealer so we will be able to contact you
concerning important product information.
You may also want to visit our website at
USA: www.powersports.honda.com.
Canada: www.honda.ca.
Happy riding!
California Proposition 65 Warning
WARNING:
This product contains or emits
chemicals known to the State of California to
cause cancer and birth defects or other
reproductive harm.
ABBREVIATION
Throughout this manual, the following
abbreviations are used to identify the respective
parts or system.
Abbrev. term
CKP sensor
DTC
ECM
ECT sensor
HPSD
IAT sensor
MAP sensor
MIL
PGM-FI
TDC
TP sensor
Full term
Crankshaft Position sensor
Diagnostic Trouble Code
Engine Control Module
Engine Coolant Temperature sensor
Honda Progressive Steering Damper
Intake Air Temperature sensor
Manifold Absolute Pressure sensor
Malfunction Indicator Lamp
Programmed Fuel Injection
Top Dead Center
Throttle Position sensor
Introduction
A Few Words About Safety
Your safety, and the safety of others, is very important. And operating this motorcycle safely is an important responsibility.
To help you make informed decisions about safety, this manual contains a section devoted to
Motorcycle Safety,
as well as a number of Safety Messages
throughout the manual.
Safety Messages are preceded by a safety alert symbol
These signal words mean:
and one of three signal words:
DANGER, WARNING,
or
CAUTION.
DANGER
WARNING
CAUTION
You WILL be KILLED or SERIOUSLY HURT if you don’t follow instructions.
You CAN be KILLED or SERIOUSLY HURT if you don’t follow instructions.
You CAN be HURT if you don’t follow instructions.
Of course, it is not practical or possible to warn you about all hazards associated with operating or maintaining a motorcycle. You must use your own good
judgement.
Safety Messages
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
Indicator ..............................................................7
MIL Blink Pattern...........................................7
Current DTC/Freeze DTC ..............................7
Circuit Inspection............................................8
DTC Index ......................................................9
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
Starting & Stopping the Engine ........................17
Fast Idle Knob ..............................................17
Preparation ....................................................17
Starting Procedure ........................................17
How to Stop the Engine................................18
Break-in Guidelines ..........................................19
SERVICING YOUR HONDA........................21
Before You Service Your Honda
The Importance of Maintenance .......................22
Maintenance Safety...........................................23
Important Safety Precautions........................23
Maintenance Schedule ......................................24
General Competition Maintenance ...................26
Before & After Competition Maintenance........30
Between Motos & Practice Maintenance .....30
After Competition Maintenance ...................30
Service Preparations
Maintenance Component Locations..................32
Seat ....................................................................33
Fuel Tank...........................................................34
Subframe ...........................................................36
Service Procedures
Fluids & Filters
Fuel System.......................................................40
Engine Oil .........................................................49
Transmission Oil ...............................................52
Coolant ..............................................................54
Air Cleaner ........................................................56
Crankcase Breather ...........................................58
Engine
Throttle ..............................................................59
Engine Idle Speed .............................................61
Clutch System ...................................................62
Spark Plug .........................................................67
Valve Clearance.................................................68
Piston/Piston Rings/Piston Pin..........................76
Chassis
Suspension.........................................................85
Brakes................................................................90
Wheels...............................................................94
Tires & Tubes ....................................................95
Drive Chain .......................................................97
Exhaust Pipe/Muffler ......................................100
Steering Damper..............................................103
Additional Maintenance Procedures ...............105
Appearance Care .............................................107
Contents

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