Engine data
| Model | S3-JUNIOR |
| Description | Single Cylinder – 2 Stroke |
| Class | CIK/FIA – OKJ |
| Bore | Ø 53,95mm |
| Max-Bore | Ø 54,08mm |
| Stroke | 54,40mm |
| Displacement | 124,36cc |
| Ports | 5 |
| Inlet-System | Reed Valve |
| Lubrication | Oil Mixture |
| Ignition-System | Digital with adjustable advance – FIA Karting Homologated |
| Transmission | Direct Drive |
| Cooling-System | Water |
| Balancer-Shaft | Yes |
| Starter | Push Start |
| Carb. Model | TM KART J1 - FIA Karting Homologated |
| Max RPM Limit | 14.000 RPM |
Carburetor
