Valve shims and valve caps are important components for fine-tuning the valve clearance in a motorcycle engine. Valve shims are small disc-shaped parts that are placed under the valve caps to ensure the correct clearance between the camshaft and the valve.
Correctly adjusted valve clearance is crucial for optimal engine performance and efficiency. The valve caps protect the valve springs and ensure even pressure distribution when the valves open and close.
Regular inspection and adjustment of the valve shims and caps helps to keep the engine running smoothly and efficiently.