In the magneto system, which of the following components is essential for generating high voltage?

In the magneto system, the component that is essential for generating high voltage is the high tension coil. The high tension coil, often referred to as the ignition coil, converts the low voltage from the magneto's primary circuit into a much higher voltage suitable for creating a spark at the spark plug. This transformation is crucial for igniting the air-fuel mixture in the engine’s combustion chamber, facilitating engine operation.

The design of the high tension coil allows it to build up and release the high voltage necessary for sparking when the magneto generates electromagnetic induction. This process is pivotal in ensuring reliable ignition and overall engine performance.

Other components, while important to the operation of the engine, do not serve the primary function of generating high voltage. For instance, the carburetor is responsible for mixing air and fuel for combustion, the flywheel helps maintain engine momentum and stability, and the choke is used to enrich the fuel mixture during starting. However, none of these components contribute directly to the generation of high voltage like the high tension coil does.