YDS5
Category: Other Yamahas
Manufacturer: Yamaha
Hits: 853
| Year | 1968 |
| Engine Class | 250 |
| Bore (MM) | 56 |
| Stroke (MM) | 50 |
| Displacement (CC) | 246 |
| Compression Ratio (to 1) | 7.5 |
| Torque (kgm) @ RPM | 2.72 @ 7,500 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Carburetor Model | 2 - VM26SC |
| Ignition Type | Magneto |
| Primary Drive Gearing | 3.250 |
| Box Gearing First | 2.545 |
| Box Gearing Second | 1.533 |
| Box Gearing Third | 1.167 |
| Box Gearing Fourth | 0.950 |
| Box Gearing Fifth | 0.773 |
| Front Tire (stock) | 3.00 x 18 |
| Rear Tire (stock) | 3.25 x 18 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |
| Wheelbase (mm) | 1,290 |
| Dry Weight (kg) | 147.69 |
| Voltage | 6 Volt |