Crankshaft assembly for Viper 125-200 cc motorcycles and similar (China, Minsk). The crankshaft converts the motion of the piston into rotation and transfers it to the transmission. As an assembly, it comes with the connecting rod, pin and bearing, ready for installation.
Replace it if the connecting rod has play, there is knocking in the lower part of the engine, vibration and increased oil consumption. Installation is best done in a workshop: it requires splitting the crankcase and replacing the oil seals and gaskets.
