YAMAHA - YAMAHA F4B outboard, 4hp
- Engine type: 4-stroke
- Displacement: 139 ccm
- No. of cylinders: 1
- Prop shaft output at mid range: 2.9kw / 4hp
- Weight with propeller: F4BMHS: 27.0kg, F4BMHL: 28.0kg
- Fuel tank capacity: 1.1 l (built-in)
- Oil pan capacity: 0.6 l