Controlling Spark Plug Coil

Hi, this is one of my first posts here. I am curretly trying to design a system that would allow me to control the spark plugs of a 4 cilynder engine (motorcycle).

The ignition coils feed two sparks at the same time (one cylinder is compressed, and the other just finished the exhaust), and 180º later, the other 2 spark plugs spark.

I already have the spark plug stuff figured out.

My hall sensor (pickup coil), has 2 wires, that go directly into the CDI of the bike (wich is what I'm trying to replace). My biggest issue is that I have no idea on how to connect the pickup coil, or how to read it.

Does anyone has any pointer on this?