I have an old motorcycle which I would like to fit with a modern CDI ignition. The ignition would be of the type typically fitted to dirt bikes and which require a high voltage AC source. They have a permanent magnet alternator with a separate high voltage stator for the ignition in addition to a 12V stator. My bike has a permanent magnet alternator which contains two 6V stators wired in parallel. I am wondering if it is possible to use a transformer to provide a ~300V source from the stock alternator to power the CDI. I could dedicate one of the stators to the ignition if necessary. Is providing the high voltage supply as simple as this or am I missing something? Is there any specific type of transformer or characteristics/features I would need?