What is the negative terminal on a dyna dual fire coil?

The negative terminal on a Dyna dual fire coil is typically the terminal that connects to the ignition system and is responsible for grounding the coil. In a dual fire setup, both cylinders are fired simultaneously, meaning that the negative terminal serves both cylinders by providing a path for the current to return to the ignition module. This design allows for efficient spark generation in high-performance engines. Always refer to the specific wiring diagram for your system, as terminal designations may vary.