| Bike | 2003 Honda CRF230F |
| Standard Maintenance Interval | 965.61km (600mi) |
| Break-in Interval | 160.93km (100mi) |
| Engine Oil Change Interval | 965.61km (600mi) |
| Initial Valve Check | 160.93km (100mi) |
| Periodic Valve Check | 965.61km (600mi) |
| Engine Oil Capacity With Filter Change | 1L (0.264gal.) |
| More on Engine Oil | SAW 10W-40 semi-synthetic |
| Idle Speed RPM | 1,400 +/- 100 |
| Sparks | NGK DPR8EA-9 |
| Spark Plug Gap | 0.8 – 0.9mm |
| Cylinder Compression | 190psi (13.1bar, 1,310kPa) +/- 1.45psi (0.1bar, 10kPa) |
| Final Drive | Type: Chain 520 DID 520V6 or RK520SMOZ2, O-ring sealed chain Final Drive Ratio: 13 / 50 |
| Fork Oil | Level: 145mm (5.71″) Capacity: 382cc +/- 5cc |
| Front Wheel | 80/100-21 |
| Front Wheel Pressure (solo/dual riding) | 15psi (1.03bar, 103.42kPa) |
| Rear Wheel | 100/100-18 |
| Rear Wheel Pressure (solo/dual riding) | 15psi (1.03bar, 103.42kPa) |
| Valve Clearance | IN: 0.09mm +/- 0.01mm EX: 0.09mm +/- 0.01mm |
| Throttle Grip Free Play | 2 (0.08) – 6mm (0.24″) |
| Clutch Lever Free Play | 10 (0.39) – 20mm (0.79″) |
| Drive Chain Slack | 20 (0.79) – 30mm (1.18″) |
| Engine Oil Drain Bolt Torque | 15N·m (11.06ft·lbf) |
| Front Axle Pinch Bolt Torque | 12N·m (8.85ft·lbf) |
| Front Axle Bolt Torque | 74N·m (54.58ft·lbf) |
| Rear Axle Bolt Torque | 108N·m (79.66ft·lbf) |