Technical Specification for Yama4
| Type | 4-Stroke,air cooled, SOHC |
| Compression Ratio | 9.0:1 |
| MaxTorque | 8.4 N.m/6,500rpm |
| Lubrication System | Wet-Sump |
| Ignition System | 12V / DC CDI |
| Fuel Tank Capacity | 8.6 liters |
| Fuel Reserve Capacity | 1.2 liters |
| Starting System | Kick Start |
| Overall Length | 1920 mm. |
| Overall Width | 800 mm. |
| Overall Height | 1020 mm |
| Wheel Base | 1210 mm. |
| Dry Weight | 95kg |
| Tyre Front | 2.50-18 4PR |
| Tyre Rear | 2.50-18 4PR |
