1973 Honda CR250 Specifications and Specs
Specifications and workshop reference information for the 1973 Honda CR250, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | Air-cooled 2-stroke single-cylinder, piston-port |
| Displacement | 248 cc |
| Bore × Stroke | 70.0 mm × 64.4 mm |
| Compression Ratio | 8.5:1. |
| Maximum Power | Approx. 29 hp @ 7,500 rpm |
| Maximum Torque | 8.5:1. |
| Carburetor | 34 mm Keihin | Replacement Options |
| Lubrication | Pre-mix |
| Fuel Mix Ratio | 20:1 to 25:1 | Premix Calculator |
| Ignition | Flywheel magneto |
| Spark Plug | NGK B9ES / B9EV type |
| Spark Plug Gap | 0.7 mm |
Transmission
| Transmission Type | 5-speed close-ratio |
| Clutch | Wet multi-plate |
| Final Reduction | Chain drive |
Dimensions
| Overall Length | 84.3 in |
| Overall Width | 35.0 in |
| Overall Height | 44.9 in |
| Wheelbase | 57.1 in |
| Ground Clearance | 178 mm |
| Fuel Tank Capacity | 1.8 gal |
| Bearing Sizes |
Bearing Finder |
Chassis
| Frame Type | Semi-double cradle |
| Front Suspension | Long-travel telescopic forks | Fork Oil Levels |
| Rear Suspension | Swingarm with refillable shock absorbers |
| Front Suspension Travel | 180 mm |
| Rear Suspension Travel | 101.6 mm |
Brakes & Wheels
| Front Tire | 3.00 × 21 | Tyre Size Guide |
| Rear Tire | 4.00 × 18 | Tyre Size Guide |
| Front Brake | Internal expanding shoe drum |
| Rear Brake | Internal expanding shoe drum |
250cc Other Specs
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