2011 Polaris 400 Sportsman Cdi Wiring

By | February 23, 2023

2011 Polaris 400 Sportsman CDI Wiring

The 2011 Polaris 400 Sportsman is a popular ATV that is known for its reliability and performance. However, like any other machine, it can experience electrical problems from time to time. If you are having trouble with your Sportsman's CDI, this article will help you troubleshoot the issue and get your ATV back on the trail. ### Symptoms of a Bad CDI There are a few symptoms that can indicate that your Sportsman's CDI is bad. These include: * The ATV will not start or will only start intermittently. * The ATV will run rough or stall frequently. * The ATV's spark plugs will be fouled. * The ATV's engine will overheat. If you are experiencing any of these symptoms, it is a good idea to have your CDI checked by a qualified technician. ### How to Test the CDI Testing the CDI is a relatively simple process. You will need a multimeter and a few basic tools. 1. First, disconnect the negative battery cable from the battery. 2. Locate the CDI on your ATV. It is typically located near the engine. 3. Disconnect the CDI connector from the CDI. 4. Set your multimeter to the ohms setting. 5. Touch one multimeter probe to the positive terminal of the CDI connector and the other probe to the negative terminal. 6. The multimeter should read infinity. If it does not, the CDI is bad and needs to be replaced. ### Replacing the CDI Replacing the CDI is a relatively simple process. You will need a new CDI, a few basic tools, and some electrical tape. 1. First, disconnect the negative battery cable from the battery. 2. Locate the CDI on your ATV. It is typically located near the engine. 3. Remove the CDI mounting bolts. 4. Disconnect the CDI connector from the CDI. 5. Install the new CDI. 6. Connect the CDI connector to the CDI. 7. Secure the CDI with the mounting bolts. 8. Reconnect the negative battery cable to the battery. Once you have replaced the CDI, start your ATV and let it run for a few minutes. If the problem is fixed, you are good to go. If the problem persists, you may need to have your ATV further diagnosed by a qualified technician. ### Conclusion The CDI is an important part of your ATV's electrical system. If it goes bad, it can cause a variety of problems. By following the steps in this article, you can troubleshoot the issue and get your ATV back on the trail. ## Additional Resources * [Polaris 400 Sportsman CDI Wiring Diagram](https://www.polaris.com/en-us/support/parts-and-accessories/wiring-diagrams/atv/400-sportman-2011-2012) * [How to Test a CDI](https://www.ehow.com/how_6930150_test-cdi.html) * [How to Replace a CDI](https://www.youtube.com/watch?v=5_o77239-8E)


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