The ignition switch on a Harley Davidson motorcycle is crucial to its operation. It is responsible for controlling the power to the starter, ignition, and accessories. As such, it is important to understand how it is wired and how to troubleshoot any issues that may arise. This article will provide a detailed overview of the Harley ignition switch wiring diagram and offer some frequently asked questions.
Understanding the Harley Ignition Switch Wiring Diagram
The Harley ignition switch wiring diagram will vary depending on the year and model of your motorcycle. In general, it consists of four or five wires that control different functions. The most common colors for these wires are red, black, white, and green.
The red wire is typically the main power wire and is connected to the battery positive terminal. The black wire is the ground wire and is connected to the frame or engine block. The white wire is the accessory wire and is used to power lights, horns, and other accessories. The green wire is the ignition wire and is used to connect to the ignition coil or electronic ignition module.
On newer Harley motorcycles, there may be an additional wire that controls the starter. This wire is typically yellow or orange and is used to engage the starter motor when the ignition switch is turned to the start position.
It is important to note that the wiring diagram may differ depending on whether your Harley has a key fob or traditional key.
Wiring Diagram for Harley Motorcycles with Key Fob
Here is a typical wiring diagram for Harley motorcycles with a key fob:
| Wire Color | Function |
|---|---|
| Red | Main power |
| Black | Ground |
| White | Accessory power |
| Green | Ignition power |
| Yellow or Orange | Starter power |
Wiring Diagram for Harley Motorcycles with Traditional Key
Here is a typical wiring diagram for Harley motorcycles with a traditional key:
| Wire Color | Function |
|---|---|
| Red | Main power |
| Black | Ground |
| White | Accessory power |
| Green | Ignition power |
Frequently Asked Questions
What are some common issues with Harley ignition switches?
One common issue with Harley ignition switches is a failure to start. This can be caused by a variety of issues, including a dead battery, a faulty starter, or a malfunctioning ignition switch. Another issue is the inability to turn off the motorcycle, which can also be caused by a malfunctioning switch.
How do I troubleshoot an ignition switch issue?
If you are experiencing issues with your ignition switch, the first thing to do is check the battery and starter. If these components are functioning properly, you can then test the ignition switch by using a multimeter to check for continuity on each wire. If any wires are broken or the switch is not functioning properly, it may need to be replaced.
Can I replace the ignition switch on my Harley myself?
Replacing the ignition switch on a Harley can be a tricky process and should only be attempted by someone with the proper knowledge and tools. It is recommended that you have a Harley certified mechanic perform this task to ensure proper installation and function.
How much does it cost to replace an ignition switch on a Harley?
The cost to replace an ignition switch on a Harley can vary depending on the model and year of the motorcycle. On average, the cost can range from $100 to $300 for parts and labor.
Is it possible to bypass the ignition switch on a Harley?
It is possible to bypass the ignition switch on a Harley, but it is not recommended. Doing so can cause damage to the motorcycle and may be illegal in some states. It is always best to have a functioning ignition switch for safety and legal reasons.
