Valve springs and poppets are components in the valve mechanism of a motorbike. The valve springs are used to keep the valves closed while exerting sufficient pressure on the valve seats to ensure a tight seal.
The valve springs are made of high-strength steel and are carefully calculated to provide the spring force required to maintain valve clearance and control valve movement. The valve discs are flat discs that sit on the valve stems and evenly distribute the pressure of the valve springs to the valves.
Proper function of the valve springs and poppets is critical for correct valve timing and engine performance. Excessive wear or damage can cause valve movement to be impaired, resulting in loss of power, irregular combustion or even valve damage. Regular inspection and, if necessary, replacement of worn or damaged valve springs and poppets are important to ensure the reliability and longevity of the motorbike.