Which ignition system is more common on larger models?

Larger models of motorcycles and other vehicles typically utilize a DC-based ignition system due to its ability to deliver consistent and reliable spark under various operating conditions. A DC ignition system can provide a steady voltage supply, which is particularly advantageous in high-performance applications where precision and dependability are crucial. This type of ignition system tends to perform better at low speeds and under varying load conditions, making it suitable for larger engines that require a more robust ignition solution.

In contrast, battery-based systems are often found in smaller models or applications where weight and size are more important, while CDI (Capacitor Discharge Ignition) systems, although effective, are less common in larger models due to limitations in high-power applications. AC-based systems are typically used in smaller, less powerful engines because they are simpler and cheaper to implement. Thus, in a broader context, the preference for DC-based ignition in larger models is attributed to the system's reliability and performance capabilities.