| Year | 1968 |
| Engine Class | 80 |
| VIN Prefix | G5 |
| Known VIN Range (Vehicle ID Numbers) | G5-200101--211043 |
| Model Code | G5 |
| Tank Color(s) | Candy Red, Yamaha Black |
| Country of Sale | USA |
| Bore (MM) | 47 |
| Stroke (MM) | 42 |
| Displacement (CC) | 73 |
| Compression Ratio (to 1) | 6.8 |
| BHP @ RPM | 6.6 @ 7,000 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Ignition Type | Magneto |
| Front Tire (stock) | 2.5 x 17 |
| Rear Tire (stock) | 3.00 x 17 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |