The Genuine Buddy 170 cylinder crankshaft diagram shows the complete engine bottom-end assembly, including the crankshaft, connecting rod assembly, crank pin, main bearings, crankshaft seals, piston pin, piston, piston rings, timing chain (if applicable), cam chain adjuster components, roller bearings, woodruff key, and related washers, spacers, and mounting hardware. This diagram is used to identify OEM replacement parts for engine bottom-end rebuilds, crankshaft service, and internal engine mechanical repair on Buddy 170 models.
The crankshaft assembly is responsible for converting the up-and-down motion of the piston into rotational force that drives the transmission and ultimately the rear wheel. It also supports engine timing synchronization and smooth power delivery through precise bearing alignment and balance. Common repairs include replacing a worn or seized crankshaft bearing that causes engine noise or failure, servicing a damaged connecting rod that leads to loss of compression or internal knocking, replacing worn piston rings that reduce power and efficiency, and addressing failed seals that cause air leaks, oil loss, or poor engine performance.