Capacitor Discharge Ignition For Sparking Water

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Yes, I am familiar with that video of water sparks .
The engineer has US Patent on that method. For OLDER type vehicles that can have the existing common inductive type ignition removed, and changed over to CDI, then the other change can be made. During the capacitive discharge ignition module charges 1uf capacitor that discharges into primary of step up autotransformer. The 250volts fast induces into winding that then allows secondary to fire in microseconds, not milliseconds as normal. What exactly happens is this, what they didn't tell you in video, the capacitor does not fully discharge. The remnant voltage left is about 50 volts. The high volts diode is added , facing the high volts output. Diode is in ON condition. When high volts COMES OUT INITIALLY, it presses against diode , diode shuts off. High volts reverses and along with Radiant Energy escaping, the balance of 50v energy of cap follows the high volts to spark plug. The blast noise is the too fast resultant energy release into zero ohms spark plug to ground. Good for gasoline fuel.

A riding mower engine you work on, sometimes has double, (2) alternators on the same ring. The black wire is not ground. The other 2 end ground wires attach underneath ring to chassis top of engine. The  two color wires red + blk, are (2) hot wires as output. A burned out wire would be  only one red  alternator burned out. A new diode put on other black wire wold be the new alternator as output. The flywheel can just stay on engine. The 2 curves of wound wires are on each side of plastic ring,  180 degrees and 180 degrees  as completely separate. Briggs company had many different types of single alternators and also the common double red/Black alternators.   4 amp output from  red wire + 5 amp output from black wire. Most people don't use the headlights on riding mower that uses power from the black wire.The Briggs company was wrong using a black colored  wire on factory assembly line. (Mechanics in general assume a black wire means ground.)

Seems like a lot of trouble to go to versus solid state ignition.