The AC CDI (Capacitor Discharge Ignition) box is an important component of the ignition system in motorcycles and other small vehicles. It is responsible for providing the necessary voltage to the spark plug, which ignites the fuel and air mixture in the engine. In this article, we will discuss everything you need to know about AC CDI box wiring diagram.
What is an AC CDI Box?
The AC CDI box is an electronic module that stores voltage from the motorcycle’s charging system and releases it to the spark plug at the correct time. This process ensures that the spark plug ignites the fuel and air mixture at the correct time to deliver maximum power and efficiency to the engine.
The AC CDI box has a simple design, consisting of a charging coil, a trigger coil, and a capacitor. The charging coil generates AC voltage, which is stored in the capacitor. The trigger coil sends a signal to the CDI box to release the voltage to the spark plug at the correct time.
AC CDI Box Wiring Diagram
Now let’s discuss the wiring diagram of the AC CDI box. The wiring diagram varies depending on the make and model of your motorcycle. However, the basic wiring diagram consists of the following components:
| Component | Function | Color |
|---|---|---|
| Charging Coil | Generates AC voltage | Yellow or White |
| Trigger Coil | Sends signal to CDI box | Blue or Green |
| CDI Box | Stores and releases voltage | Black or Red |
| Ignition Coil | Amplifies voltage | Black or Red |
| Spark Plug | Ignites fuel and air mixture | N/A |
Before starting the wiring process, it is important to disconnect the battery and make sure all the components are clean and in good condition. The wiring process is as follows:
Step 1: Connect the Charging Coil
Connect the yellow or white wire from the charging coil to the CDI box’s positive terminal. The negative terminal of the CDI box should be connected to the ground wire.
Step 2: Connect the Trigger Coil
Connect the blue or green wire from the trigger coil to the CDI box’s corresponding input terminal. The negative terminal of the CDI box should be connected to the ground wire.
Step 3: Connect the Ignition Coil
Connect the black or red wire from the ignition coil to the CDI box’s corresponding output terminal. The negative terminal of the ignition coil should be connected to the ground wire.
Step 4: Connect the Spark Plug
Connect the spark plug to the ignition coil. Make sure the spark plug is clean and in good condition.
FAQs
What is the purpose of the CDI box?
The CDI box is responsible for storing and releasing voltage to the spark plug at the correct time. This process ensures that the spark plug ignites the fuel and air mixture in the engine at the correct time to deliver maximum power and efficiency.
What happens if the CDI box is faulty?
If the CDI box is faulty, it can cause a number of issues with the motorcycle’s ignition system. These issues can include poor performance, difficulty starting, and stalling while riding.
Can I test the CDI box?
Yes, you can test the CDI box using a multimeter. The testing process involves checking the resistance of the charging and trigger coils, and the output voltage of the CDI box. If any of these values are outside of the manufacturer’s specifications, the CDI box may need to be replaced.
Can I install an aftermarket CDI box?
Yes, you can install an aftermarket CDI box to improve the performance of your motorcycle. However, it is important to choose a CDI box that is compatible with your motorcycle’s make and model. It is also important to follow the manufacturer’s instructions for installation.
Do I need to take my motorcycle to a mechanic to install the CDI box?
No, you do not necessarily need to take your motorcycle to a mechanic to install the CDI box. However, if you are not confident in your ability to install the CDI box correctly, it may be a good idea to seek professional help.
In conclusion, the AC CDI box is an essential component of the motorcycle’s ignition system. Proper wiring of the AC CDI box is important for the engine to function properly. Follow the wiring diagram and instructions carefully, and always consult with the manufacturer or a mechanic if you have any questions or concerns.
