| Bike | 2003 Honda XR250R |
| Standard Maintenance Interval | 1,609.34km (1,000mi) |
| Break-in Interval | 321.87km (200mi) |
| Engine Oil Change Interval | 1,609.34km (1,000mi) |
| Initial Valve Check | 321.87km (200mi) |
| Periodic Valve Check | 1,609.34km (1,000mi) |
| Engine Oil Capacity With Filter Change | 1.4L (0.37gal.) |
| More on Engine Oil | Pro Honda Gn4 HP4 4-stroke, SAE10W-40 |
| Idle Speed RPM | 1,300 +/- 100 |
| Sparks | NGK CR9EH-9 or DENSO U27FER9 |
| Spark Plug Gap | 0.8 – 0.9mm |
| Cylinder Compression | 177.96psi (12.27bar, 1,227kPa) +/- 7.25psi (0.5bar, 50kPa) |
| Final Drive | Type: Chain 520 DID 520VC5 or RK 520MOZ9 Final Drive Ratio: 13 / 48 |
| Fork Oil | Level: 82mm (3.23″) Capacity: 477cc +/- 5cc |
| Front Wheel | 80/100-21 Dunlop K490G / Bridgestone M23 |
| Front Wheel Pressure (solo/dual riding) | 15psi (1.03bar, 103.42kPa) |
| Rear Wheel | 100/100-18 Dunlop K695 / Bridgestone M22 |
| Rear Wheel Pressure (solo/dual riding) | 14psi (0.97bar, 96.53kPa) |
| Headlight | 12V 35W Halogen /35W |
| Taillight | 12V 5W Halogen 5W |
| Valve Clearance | IN: 0.15mm +/- 0.05mm EX: 0.16mm +/- 0.04mm |
| Throttle Grip Free Play | 2 (0.08) – 6mm (0.24″) |
| Clutch Lever Free Play | 10 (0.39) – 20mm (0.79″) |
| Drive Chain Slack | 30 (1.18) – 40mm (1.57″) |
| Engine Oil Drain Bolt Torque | 25N·m (18.44ft·lbf) |
| Engine Oil Filter Torque | 12N·m (8.85ft·lbf) |
| Engine Oil Frame Drain Bolt Torque | 39N·m (28.76ft·lbf) |
| Front Axle Pinch Bolt Torque | 12N·m (8.85ft·lbf) |
| Front Axle Bolt Torque | 74N·m (54.58ft·lbf) |
| Front Brake Disc Bolt Torque | 20N·m (14.75ft·lbf) |
| Front Brake Caliper Mounting Bolt Torque | 30N·m (22.13ft·lbf) |
| Rear Axle Bolt Torque | 93N·m (68.59ft·lbf) |
| Rear Brake Disc Bolt Torque | 42N·m (30.98ft·lbf) |
| Driven Sprocket Bolt/Nut Torque | 32N·m (23.6ft·lbf) |