Harley Dual Fire Coil Wiring Diagram

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Dual Plug wire routing Harley Davidson Forums

Are you looking for a wiring diagram for your Harley dual fire coil? If so, then you’re in luck. This article will discuss the basics of ignition wiring and provide a Harley dual fire coil wiring diagram to help you get the job done.

Overview of Ignition Wiring

Ignition wiring is an important part of any vehicle and is responsible for controlling the spark that makes the engine run. Each part of the ignition wiring must be connected correctly in order to ensure proper operation. Typically, the wiring consists of a spark plug wire, an ignition coil, a distributor, and a spark plug.

The spark plug wire is responsible for carrying the spark from the ignition coil to the spark plug, which then ignites the air and fuel mixture in the engine cylinders. The ignition coil is responsible for creating the spark, and the distributor is responsible for routing the spark to the correct cylinder.

Harley Dual Fire Coil Wiring Diagram

The following diagram illustrates the wiring of a Harley dual fire coil. As you can see, the wiring is fairly simple and straightforward.

Harley dual fire coil wiring diagram

The primary lead from the ignition switch should be connected to the terminal on the coil. The secondary lead from the coil should then be connected to the spark plug wire. Finally, the spark plug wire should be connected to the spark plug.


By following the wiring diagram provided, you should have no trouble wiring the Harley dual fire coil. Always be sure to double-check the wiring before starting the engine to ensure everything is wired correctly. If you have any questions, it’s best to consult a professional mechanic.