Yamaha YFZ 0.4 L 39 hp (2005–present)
Yamaha YFZ — sports quad bike
Engine
| Displacement | 0.4 L (439 cc) |
| Power | 39 hp |
| Fuel type | gasoline |
| Система впрыска | retained injection |
| Турбонаддув | — |
| Cylinders | 1 |
| Расположение цилиндров | R |
| ГРМ | SOHC |
| Расположение двигателя | Central ,Transverse |
| Охлаждение | liquid |
Transmission
| Transmission | Manual |
| Gears | 5 |
| Drive | Rear drive |
Chassis & Suspension
| Front suspension | Двойной А-рычаг |
| Rear suspension | Маятниковый рычаг |
| Front brakes | Disc brakes |
| Rear brakes | Disc brakes |
| Ground clearance | 112 mm |