1980 Honda Express Wiring Diagram

The 1980 Honda Express was a popular moped that was known for its reliability and efficiency. If you own one of these mopeds, it is important to have a wiring diagram on hand in case you need to troubleshoot or repair any electrical issues. In this article, we will provide a detailed Honda Express wiring diagram along with some helpful FAQs and tables to assist you in understanding the wiring system.

Understanding the Honda Express Wiring Diagram

The wiring diagram for the 1980 Honda Express is a simple and straightforward diagram that illustrates the electrical connections between the various components of the moped. The diagram includes the battery, ignition switch, spark plug, headlight, turn signals, brake light, horn, and other important electrical components.

The wiring diagram is divided into individual circuits that are shown in different colors for easy identification. Each circuit is labeled with a corresponding letter and number, which can be used to locate the specific wire or component within the circuit. The wiring diagram also includes a legend that explains the different symbols and colors used in the diagram.

It is important to note that the Honda Express wiring diagram may differ slightly depending on the specific model and year of your moped. Therefore, it is recommended to refer to the manufacturer’s manual or contact a qualified mechanic if you have any questions or concerns about your wiring diagram.

Now, let’s take a closer look at each section of the Honda Express wiring diagram.

Battery and Ignition Circuit

The battery and ignition circuit is responsible for providing power to the moped’s ignition system. This circuit includes the battery, ignition switch, and spark plug. The battery is charged by the engine when it is running, and provides the necessary power to start the engine and run the electrical components when the engine is off.

The ignition switch is located on the handlebars and is used to turn the moped on and off. When the switch is in the “on” position, it completes the circuit between the battery and spark plug, which ignites the fuel in the engine and allows it to start.

If you are experiencing issues with the battery or ignition circuit, there are several potential causes that you can check for. These include a dead battery, faulty ignition switch, or a damaged spark plug. By referencing the wiring diagram and troubleshooting each component individually, you can pinpoint the source of the issue and make the necessary repairs.

Lighting Circuit

The lighting circuit is responsible for powering the moped’s headlight, turn signals, brake light, and horn. This circuit includes several fuses and relays that help regulate the power and protect the electrical components from damage.

If you notice that any of your lights or the horn are not working properly, it is important to first check the fuses and relays in the lighting circuit. By replacing any faulty components, you can quickly restore your lighting system to full functionality.


Question Answer
How do I read a Honda Express wiring diagram? Refer to the legend and follow the color-coded wires to locate each component in the circuit.
What should I do if my headlights are not working? Check the fuses and relays in the lighting circuit, and make sure the bulbs are not burned out.
Where can I find a wiring diagram for my specific Honda Express model? Refer to the manufacturer’s manual or contact a qualified mechanic.
How often should I check my moped’s wiring system? It is recommended to perform routine checks and maintenance on your moped’s wiring system every few months.


The Honda Express wiring diagram is an essential tool for any moped owner who wants to ensure their electrical system is functioning properly. By referencing the wiring diagram and following the troubleshooting tips provided in this article, you can quickly diagnose and repair any electrical issues you may encounter. Remember to always exercise caution when working with electrical components and to consult a qualified mechanic if you are unsure about any aspect of your moped’s wiring system.