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Honda CRF250R 2006 User Manual

Honda CRF250R 2006
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Servicing Your Honda 17
Servicing Your Honda
Keeping your CRF well maintained is absolutely
essential to your safety. Its 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. Youll also find
important safety precautions, information on oils,
and tips for keeping your Honda looking good.
An ICM (Ignition Control Module) system is
used on this motorcycle; consequently, routine
ignition timing adjustment is unnecessary. If you
want to check the ignition timing, refer to the
Honda Service Manual (page 154).
An optional tool kit may be available. Check
with your Honda dealers parts department.
Before You Service Your Honda
The Importance of Maintenance ........................18
Maintenance Safety............................................19
Important Safety Precautions........................19
Maintenance Schedule .......................................20
General Competition Maintenance ....................22
Before & After Competition Maintenance.........26
Between Motos & Practice Maintenance .....26
After Competition Maintenance ...................26
Service Preparations
Maintenance Component Locations...................28
Seat Removal .....................................................29
Fuel Tank Removal ............................................30
Subframe Removal.............................................32
Service Procedures
Fluids & Filters
Fuel System........................................................34
Engine Oil ..........................................................36
Transmission Oil ................................................39
Coolant ...............................................................41
Air Cleaner.........................................................43
Crankcase Breather ............................................45
Engine
Throttle...............................................................46
Engine Idle Speed ..............................................48
Clutch System ....................................................49
Hot Start Lever...................................................54
Spark Plug ..........................................................55
Valve Clearance..................................................56
Piston/Piston Rings/Piston Pin...........................64
Chassis
Suspension..........................................................72
Front Suspension Inspection........................72
Rear Suspension Inspection.........................73
Fork Oil Change ..........................................74
Brakes.................................................................77
Wheels................................................................81
Tires & Tubes.....................................................82
Drive Chain ........................................................84
Exhaust Pipe/Muffler .........................................87
Additional Maintenance Procedures ..................91
Appearance Care ................................................93

Table of Contents

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Honda CRF250R 2006 Specifications

General IconGeneral
Engine TypeLiquid-cooled single-cylinder four-stroke
Displacement249 cc
Bore x Stroke78.0mm x 52.2mm
Compression Ratio12.9:1
Transmission5-speed
IgnitionCDI
Final DriveChain
Front Suspension47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Front BrakeSingle 240 mm disc with twin-piston caliper
Rear BrakeSingle 240 mm disc
Front Tire80/100-21
Rear Tire100/90-19
Wheelbase58.5 inches
Seat Height37.6 inches
Fuel Capacity1.9 gallons
Rear SuspensionPro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustability separated into low-speed (13 positions) and high-speed (3.5 turns)
Fuel SystemCarburetion: Keihin FCR 40 mm flat-slide carburetor with throttle position sensor (TPS)

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