How does a motorcycle OHC valves work?

Overhead cam (OHC) valves in a motorcycle engine are part of the valve train system that controls the intake and exhaust of air-fuel mixture and exhaust gases. In an OHC design, the camshaft is located above the valves, allowing for more precise timing and better performance compared to pushrod systems. As the camshaft rotates, its lobes push directly on the rocker arms or the valves themselves, opening and closing them at specific intervals during the engine cycle. This design helps improve engine efficiency, reduce weight, and enhance overall power output.