When it comes to repairing or maintaining your 110cc Chinese ATV, having access to accurate wiring diagrams is critical. In this article, we’ll take a closer look at the wiring diagrams for CDI-equipped 110cc ATVs, including the common wire colors and what they represent. We’ll also cover frequently asked questions about 110cc Chinese ATV CDI wiring diagrams, to help you troubleshoot any electrical issues you may encounter.
What is a CDI?
A CDI, or capacitor discharge ignition, is a type of ignition system that stores electrical energy in a capacitor and then releases it in a high-voltage pulse to the spark plug. This type of ignition system is commonly used on small engines, such as those found in 110cc Chinese ATVs. The CDI is responsible for controlling the timing and intensity of the spark, ensuring that the engine runs smoothly and efficiently.
Here is a typical wiring diagram for a 110cc Chinese ATV with a CDI:
| Wire Color | Function |
|---|---|
| Black/White | Ignition Coil |
| Green | Ground |
| Red/Black | CDI Power |
| Blue/White | CDI Signal |
| Yellow | Stator AC Output |
Black/White Wire
The black/white wire is the ignition coil wire. This wire connects to the positive terminal of the ignition coil and provides the spark necessary to ignite the fuel-air mixture in the engine. If you’re experiencing weak or intermittent spark, this wire should be one of the first things you check.
If the black/white wire is damaged or disconnected, the engine will not start. You can test the continuity of this wire using a multimeter. With the key off, disconnect the wire from the ignition coil and use the multimeter to test for continuity between the wire and ground. There should be no continuity. If there is, the wire is grounded and needs to be repaired or replaced.
Green Wire
The green wire is the ground wire. It should be connected to a clean, bare metal surface on the frame of the ATV. A poor ground connection can cause all kinds of electrical issues, from weak or intermittent spark to a dead battery. Make sure the green wire is securely connected and that the ground surface is clean and free of rust or corrosion.
Red/Black Wire
The red/black wire is the CDI power wire. This wire provides power to the CDI module from the battery or electrical system. If you’re experiencing no spark or weak spark, this wire should be one of the first things you check. Make sure it’s securely connected and that there’s no damage to the wire or connector.
Blue/White Wire
The blue/white wire is the CDI signal wire. This wire carries a signal from the stator to the CDI module, telling it when to release the stored energy to the spark plug. If you’re experiencing no spark or weak spark, this wire should be one of the first things you check. Make sure it’s securely connected and that there’s no damage to the wire or connector.
Yellow Wire
The yellow wire is the stator AC output wire. This wire carries the alternating current (AC) output from the stator to the regulator/rectifier, which converts it to direct current (DC) for use by the electrical system. If you’re experiencing electrical issues, such as a dead battery or weak headlights, this wire should be one of the first things you check. Make sure it’s securely connected and that there’s no damage to the wire or connector.
FAQ
How do I test my CDI?
Testing a CDI can be difficult, as there’s no surefire way to determine if it’s faulty. However, there are a few things you can try. First, check all the wiring connections to make sure they’re secure and free of damage. Next, check the spark plug and ignition coil for damage or wear. If these components are in good condition and you’re still experiencing no spark or weak spark, the CDI may be faulty and should be replaced.
What is the stator?
The stator is a component of the electrical system that generates the electrical energy needed to power the ATV’s electrical system. It consists of a series of coils that are mounted around a rotating metal core. As the engine spins, the magnets in the flywheel pass by the stator, generating an alternating current (AC) that’s sent to the regulator/rectifier for conversion to direct current (DC). The stator also sends a signal to the CDI module, telling it when to release the stored energy to the spark plug.
What is a regulator/rectifier?
A regulator/rectifier is a component of the electrical system that regulates the voltage and rectifies the AC current generated by the stator. It ensures that the electrical system receives a steady supply of DC voltage, regardless of engine speed or load. A faulty regulator/rectifier can cause all kinds of electrical issues, from a dead battery to weak headlights.
What is a flywheel?
The flywheel is a component of the engine that’s connected to the crankshaft. It has a series of magnets embedded in it that pass by the stator to generate the electrical energy needed to power the electrical system. The flywheel also helps to smooth out the engine’s power delivery by storing some of the energy from the combustion process and releasing it during the power stroke.
How can I prevent electrical issues on my ATV?
The best way to prevent electrical issues on your ATV is to perform regular maintenance and inspections. Check all wiring connections for damage or corrosion, and make sure they’re securely fastened. Keep the electrical system clean and dry, and avoid exposing it to excessive moisture or dirt. Use high-quality replacement parts, and follow the manufacturer’s recommended maintenance schedule.
By following these tips and staying vigilant, you can keep your 110cc Chinese ATV running smoothly and reliably for years to come.
