Parts and equipment for motorcycles, quads, scooters and bicycles

Technical sheet 50cc motor with automatic gearbox 139 FMB

Characteristics of the Chinese engine type 50cc 139FMB automatic

The Chinese engine 4 time 139 FMB is installed on a single motorcycle: the mécaboite 50cc Kymco KPW. Indeed the latter has an automatic clutch. The engine is similar to the 139FMB engine except for the clutch. You will find on 50Factory.com some parts for this engine.

Chinese motorcycle engine 50cc model 139 FMB automatic

The 139 FMB 50cm3 automatic engine mounts on Chinese two-wheelers Kymco KPW50. This 4 time engine is little present on the market.ar it concerns only one model of mécaboîte. It can be distinguished from the fact that it has a relatively long intake pipe and a different ignition model 139FMB manual transmission.

Above the left side view of the Chinese 139FMB automatic transmission engine.

Above the right side view of the Chinese 139FMB engine with automatic transmission.

The intake pipe on this engine is the same as on the classic 139FMB model. The latter is larger than all other engines.

The 50cc 139FMB automatic engine ignition is different from the 139FMB engine. There are two sockets: one for the gearbox (5 lugs, on the right in the photo) and the other for ignition (3 lugs, left on the photo).

Spare parts for engine 139FMB automatic

We offer a wide range of spare parts for your Chinese made 139FMB engine. Indeed you will find on our site parts like crankshafts, piston cylinders, exhausts, carburettors or even engine gaskets perfectly compatible with your motorcycle equipped with an engine type 139FMB 50cm3. Discover our entire range of spare parts, new or used below.


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