2020 Yamaha 4 HP F4LMHA Outboard Motor

- Engine Type: One-Cylinder
- Displacement: 139cc/8.5ci
- Bore x Stroke: 62 x 46mm/2.44 x 1.81in
- Full Throttle RPM Range: 4000-5000
- Horsepower Rating at Propshaft: 4hp at 4500rpm
- Compression Ratio: 8.9:1
- Fuel Induction: OHV(Overhead Valve)
- Starting Method: Manual
- Ignition: CDI
- Lubrication: Wet Sump
- Degree of Trim: 5 positions
- Degree of Tilt: 69°
- Exhaust: Above propeller
- Cooling: Water/Thermostatic Control
- Drive: Foward, Neutral, Reverse
- Gear Ratio: 27:13/2.08:1
- Shaft Length:Short=15″, Long=20″
- Recommended Fuel: Regular Unleaded/Minimum Pump Octane 87
- Recommended Oil: Yamalube® 4M
- Engine Oil Capacity: .6L/.63qts
- Spark Plug: CR6HSB
- Prop Nut: 17mm
- Fuel Hose Diameter: 8mm
- Weight: 28kg/61lbs