Where is the balance shaft located on a motorcycle?

[VanMaci]

Motorcycle engine balance shafts are generally located at the lower part of the engine, towards the front wheel direction, at the front of the engine. Below are specific details about motorcycle engine balance shafts: 1. Function: The main purpose of an engine balance shaft is to balance the crankshaft, serving as a technical means to reduce engine vibration. 2. Working Principle: As the piston performs rapid reciprocating linear motion within the cylinder, significant inertial forces are inevitably generated on the piston, piston pin, and connecting rod. The counterweights configured on the connecting rod can effectively balance these inertial forces. However, only part of the moving mass on the connecting rod participates in linear motion, while another part participates in rotation. Except at the top and bottom dead center positions, various inertial forces cannot be completely balanced, causing the engine to vibrate.