1975 Kawasaki KX125 Specifications and Specs
Specifications and workshop reference information for the 1975 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.
General Specifications
| Engine Type | Air-cooled 2-stroke single-cylinder piston reed valve |
| Displacement | 124 cc |
| Bore × Stroke | 56.0 × 50.0 mm |
| Compression Ratio | 6.9:1 |
| Maximum Power | 21 hp |
| Maximum Torque | 17 Nm |
| Carburetor | Mikuni VM26SS |
| Lubrication | Premix |
| Fuel Mix Ratio | 20:1 |
| Ignition | CDI magneto |
| Spark Plug | NGK B8ES |
| Spark Plug Gap | 0.6 – 0.7 mm |
Transmission
| Transmission Type | 5-speed manual |
| Clutch | Wet multi-plate |
| Primary Reduction | 3.181 |
| Final Reduction | 3.923 |
| Overall Reduction | 12.48 |
Dimensions
| Overall Length | 2080 mm |
| Overall Width | 820 mm |
| Overall Height | 1120 mm |
| Wheelbase | 1360 mm |
| Ground Clearance | 250 mm |
| Fuel Tank Capacity | 8.5 L |
Chassis
| Frame Type | Steel single cradle |
| Caster Angle | 28° |
| Trail | 110 mm |
| Front Suspension | Telescopic forks |
| Rear Suspension | Twin shock swingarm |
| Front Suspension Travel | 180 mm |
| Rear Suspension Travel | 100 mm |
Brakes & Wheels
| Front Tire | 2.75-21 |
| Rear Tire | 3.50-18 |
| Front Brake | Drum brake |
| Rear Brake | Drum brake |
125cc Other Specs
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