Increased Displacement
Fitting a larger cylinder and piston will increase the displacement of the engine, which in turn will lead to an increase in power. However, it is important to note that this increase in power may come at the expense of fuel economy and reliability.
Stress on the Engine
Fitting a larger cylinder and piston will also put additional stress on the engine, which can lead to premature wear and tear. This is particularly true if the other components of the engine (such as the crankshaft, connecting rods, and bearings) are not also upgraded to handle the increased stress.
Legal Issues
In some jurisdictions, it may be illegal to modify the engine of a motorcycle in this way. This is because such modifications can invalidate the motorcycle's warranty and may also make it unsafe to ride.
Therefore, before fitting a larger cylinder and piston to a Suzuki GN125, it is important to carefully consider the potential implications and to consult with a qualified motorcycle mechanic.
