Honda CRF250R 2006 User Manual

Servicing Your Honda 75
Suspension
5. Pour the recommended fork oil into the outer
tube (1).
Fork Oil Capacity:
Standard (0.45 kgf/mm) Fork Spring
or
Standard oil
capacity
12.5 US oz
(369 cm
3
)
Maximum oil
capacity
14.0 US oz
(413 cm
3
)
Slightly stiffer as
it nears full
compression.
Slightly softer as
it nears full
compression.
Minimum oil
capacity
10.7 US oz
(317 cm
3
)
Optional Softer (0.43 kgf/mm) Fork Spring
Standard oil
capacity
12.4 US oz
(366 cm
3
)
Maximum oil
capacity
13.9 US oz
(410 cm
3
)
Slightly stiffer as
it nears full
compression.
Slightly softer as
it nears full
compression.
Minimum oil
capacity
10.6 US oz
(314 cm
3
)
1 scribe mark
(aftermarket parts)
No mark
(factory products)
3 scribe marks
Optional Stiffer (0.47 kgf/mm) Fork Spring
Standard oil
capacity
12.6 US oz
(372 cm
3
)
Maximum oil
capacity
14.1 US oz
(416 cm
3
)
Slightly stiffer as
it nears full
compression.
Slightly softer as
it nears full
compression.
Minimum oil
capacity
10.8 US oz
(320 cm
3
)
1 scribe mark and
3 scribe marks 75 degrees apart
(1)
Be sure the oil capacity is the same in both fork
legs.
(1) outer tube
(cont’d)

Honda CRF250R 2006 Specifications

General

Engine Type	Liquid-cooled single-cylinder four-stroke
Displacement	249 cc
Bore x Stroke	78.0mm x 52.2mm
Compression Ratio	12.9:1
Transmission	5-speed
Ignition	CDI
Final Drive	Chain
Front Suspension	47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Front Brake	Single 240 mm disc with twin-piston caliper
Rear Brake	Single 240 mm disc
Front Tire	80/100-21
Rear Tire	100/90-19
Wheelbase	58.5 inches
Seat Height	37.6 inches
Fuel Capacity	1.9 gallons
Rear Suspension	Pro-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 System	Carburetion: Keihin FCR 40 mm flat-slide carburetor with throttle position sensor (TPS)

Summary

Motorcycle Safety

Important Safety Information

Recommendations for riding your CRF safely.

Important Safety Precautions

Before Riding

Are You Ready to Ride?

Is Your Motorcycle Ready to Ride?

Pre-ride Inspection

Detailed checklist of items to inspect before each ride.

Servicing Your Honda

Before You Service Your Honda

Service Procedures

Step-by-step instructions for maintenance tasks.

Adjustments for Competition

Front Suspension Adjustments

Methods to adjust front suspension for rider and conditions.

Rear Suspension Adjustments

Adjusting rear suspension for rider and conditions.

Carburetor Adjustments & Tuning Tips

Fine-tuning the carburetor for specific competition needs.

Chassis Adjustments

Tips

Troubleshooting

Flowcharts to diagnose and resolve poor performance issues.

Technical Information

Specifications

Torque Specifications

Tightening specifications for nuts, bolts, and fasteners.

Quick Reference

How To Avoid Costly Repairs

Essential tips to prevent premature engine wear and damage.