YX125 BIG Valve Pit Bike Engine 4-Stroke Kickstart VM22 Carb 12BHP 153FMI 125cc
The new generation of 125cc engine from the YX factory. With the factory-fitted big valve upgrade and aluminium cylinder, the factory claims 12bhp at the flywheel from this engine. -Mikuni VM22 (26mm) carburettor.