If you are planning on upgrading your bike’s ignition system, installing a CDI (Capacitor Discharge Ignition) module is an excellent option. A CDI module is an electronic device that charges, stores and releases energy to the spark plug. In this article, we will discuss the wiring diagram for a 4-pin DC CDI module.
What is a 4 Pin DC CDI?
A 4-pin DC CDI module is a type of CDI module that is used in small engines, especially motorcycles, ATVs, and scooters. It has four pins – two for the generator, one for the ignition coil, and one for the spark plug.
The DC CDI module is different from the AC (Alternating Current) CDI module in that it operates on a DC (Direct Current) input. The AC CDI, on the other hand, operates on an AC input from the stator coil.
4 Pin DC CDI Wiring Diagram
Before we proceed with the wiring diagram, it is important to understand the function of each pin on the CDI module. Here is a brief overview of the pins:
| Pin | Name | Function |
|---|---|---|
| 1 | Ignition Coil | Connects to the positive terminal of the ignition coil. |
| 2 | Ground | Connects to the ground terminal of the ignition coil. |
| 3 | Spark Plug | Connects to the spark plug. |
| 4 | Generator | Connects to the output wire of the generator. |
Now that we know the function of each pin, let’s take a look at the wiring diagram:
Wiring Diagram
The following is the wiring diagram for a 4-pin DC CDI module:
FAQ
1. What is the function of the ignition coil?
The ignition coil is responsible for producing a high voltage spark that ignites the fuel-air mixture in the combustion chamber.
2. What is the function of the ground?
The ground provides the circuit with a return path for the current to flow back to the battery.
3. What is the function of the spark plug?
The spark plug receives the high voltage spark from the ignition coil and ignites the fuel-air mixture in the combustion chamber.
4. What is the function of the generator?
The generator is responsible for producing the electrical energy needed to charge the CDI module and power the rest of the electrical system.
5. Can I use a 4-pin DC CDI module on an AC system?
No, you cannot. The 4-pin DC CDI module is designed to operate on a DC input, while the AC system produces an AC input. You should use an AC CDI module for an AC system.
Conclusion
A CDI module is an essential component of the ignition system in small engines. Understanding the wiring diagram for a 4-pin DC CDI module is crucial to ensure proper installation and functioning of the system. Make sure to follow the manufacturer’s instructions and consult a professional if you are unsure about anything.
