If the crankshaft of the motorcycle is broken, only the assembly can be replaced, because even if you repair it later, the use effect is not very satisfactory.

The crankshaft assembly of motorcycles is mainly composed of connecting rods, needle roller bearings, and curved cakes. The damage to the motorcycle crankshaft is mainly due to the deformation of the connecting rods or the rupture of the needle rollers. No matter which of the above two components is damaged, although the components can be replaced, the replacement The effect is not very good, because you can't be sure that the swing range of the left and right biscuits will be the same, so replacing the assembly is the best way to repair this kind of failure.

As for the installation process of the crankshaft, it is not easy, because the engine needs to be completely disassembled, otherwise the crankshaft cannot be replaced, but some parts inside the engine can not move, such as the gearbox gear, the starting mechanism can not move it but Anyway, you have to be careful when changing clothes. Therefore, it is best for car owners not to disassemble it by themselves, and it is best to find professional maintenance personnel for maintenance to avoid damage to other parts.