## Complete 50cc 139FMB 50 4T AC Engine This reliable, four-stroke 139FMB engine with a displacement of 50cm³ and air cooling is the perfect choice for your moped. Based on a proven design, inspired by Honda Cub engines, it guarantees low fuel consumption of only 2l/100km, which translates into real...
## Complete 50cc 139FMB 50 4T AC Engine
This reliable, four-stroke 139FMB engine with a displacement of 50cm³ and air cooling is the perfect choice for your moped. Based on a proven design, inspired by Honda Cub engines, it guarantees low fuel consumption of only 2l/100km, which translates into real savings. This engine is compatible with most mopeds available on the market.
### Technical Data and Advantages
* **Power and Efficiency:** The four-stroke, 50cm³ engine ensures smooth and dynamic riding. The four-speed manual gearbox (N 1 2 3 4) gives you full control over the vehicle.
* **Ease of Use:** Electric and kick start ensure trouble-free starting in all conditions. The engine is factory filled with 10W40 oil and ready for installation.
* **Economy:** Low fuel consumption of 2l/100km means fuel savings and less environmental impact.
* **Reliability:** The horizontal engine orientation guarantees stable operation and long service life. Air cooling is simple and effective, ideal for urban conditions.
* **Compatibility:** The 139FMB engine fits most mopeds available on the market.
* **Additional Information:** Dedicated spark plug CR7HSA, oil filter in the form of a strainer. The set includes a complete engine, intake manifold, and front sprocket cover.
### 139FMB Engine Code
The 139FMB code contains key information about the engine: 1 cylinder, 39mm piston, F - air-cooled, M - motorcycle, B - 50 cm³.
### Choose quality and reliability!
The 139FMB engine is an excellent choice for anyone who values reliability, economy, and ease of use. Invest in proven technology and enjoy trouble-free riding.
General parameters
Gear system
Kolejność biegów to N 1 2 3 4
Dedicated spark plug
Model dedykowanej świecy dla tego silnika to CR7HSA
Capacity [cm³]
Pojemność silnika 50cm³
Cooling type:
Cooling by natural air circulation or forced cooling by the built-in motor fan in plastic casings wrapping the cylinder.
Number of strokes:
An internal combustion engine in which the duty cycle involves two revolutions of the crankshaft, which is equivalent to four reciprocating piston movements in one duty cycle.
Engine filled with oil:
The engine is pre-filled with oil, please be sure to check the oil level after receiving the goods and installation in the vehicle.
Oil filter
Zastosowany filtr oleju: mesh
Number of gears
Ilość biegów 4
Motor orientation:
The engine is in the horizontal position which means that the piston works horizontally and not in the up-down direction. Engines in this configuration are reliable and have low fuel consumption.
Gearbox type:
The manual transmission engine is equipped with a shift lever and a drive clutch which gives the driver control over torque transfer to the rear wheel.
Engine code (designation)
Kod wzoru silnika: 139FMB. Kod parametrów silnika, przykładowo 139FMB: 1 cylinder, tłok 39 mm , F - chłodzony powietrzem, M - motocyklowy, B - 50 cm
EGR Exhaust Gas Circulation:
This product does not have an EGR exhaust gas recirculation system, which reduces exhaust emissions. The absence or removal of EGR has a positive effect on engine power.
Components included
Zestaw zawiera: Complete engine, intake nozzle, front sprocket cover
Startup type:
The engine is equipped with a electric starter and a foot starter.