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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) |
Recommendations for riding your CRF safely.
Detailed checklist of items to inspect before each ride.
Step-by-step instructions for maintenance tasks.
Methods to adjust front suspension for rider and conditions.
Adjusting rear suspension for rider and conditions.
Fine-tuning the carburetor for specific competition needs.
Flowcharts to diagnose and resolve poor performance issues.
Tightening specifications for nuts, bolts, and fasteners.
Essential tips to prevent premature engine wear and damage.
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