An engine modification designed to increase the displacement of a Yamaha Warrior ATV. This typically involves replacing the stock cylinder and piston with components that have a larger bore diameter, thereby increasing the volume within the cylinder and, consequently, the engine’s capacity.
The installation of such a modification can lead to a significant increase in horsepower and torque. This enhancement translates to improved acceleration, greater pulling power, and an enhanced overall riding experience. Historically, enthusiasts have sought such upgrades to improve the performance of their vehicles, particularly for competitive or recreational off-road activities.