1974 Kawasaki KX125 Specifications and Specs
Specifications and workshop reference information for the 1974 Kawasaki KX125, 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.
Photo credit:
Rob’s Dirtbike Repairs – Broken Hill
General Specifications
| Engine Type | 124.8cc, air-cooled, 2-stroke single |
| Displacement | 124.8 cc |
| Bore × Stroke | 56.0 mm × 50.6 mm |
| Compression Ratio | ~7.0:1 |
| Maximum Power | ~20 hp |
| Maximum Torque | ~16 Nm |
| Carburetor | Mikuni VM26 |
| Lubrication | Premix |
| Fuel Mix Ratio | 20:1 |
| Ignition | Magneto |
| Spark Plug | NGK B8ES |
| Spark Plug Gap | 0.6–0.7 mm |
Transmission
| Transmission Type | 6-speed manual |
| Clutch | Wet multi-plate |
| Primary Reduction | ~3.200 |
| Final Reduction | ~3.846 (50/13) |
| Overall Reduction | N/A |
Dimensions
| Overall Length | ~2100 mm |
| Overall Width | ~800 mm |
| Overall Height | ~1150 mm |
| Wheelbase | ~1400 mm |
| Ground Clearance | ~280 mm |
| Fuel Tank Capacity | ~7.5 L |
Chassis
| Frame Type | Steel single cradle |
| Caster Angle | ~29.0° |
| Trail | ~120 mm |
| Front Suspension | Telescopic forks |
| Rear Suspension | Twin shock |
| Front Suspension Travel | 4 in (≈100 mm) |
| Rear Suspension Travel | 6 in (≈150 mm) |
Brakes & Wheels
| Front Tire | 2.75-21 |
| Rear Tire | 3.50-18 |
| Front Brake | Drum |
| Rear Brake | Drum |
125cc Other Specs
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