Unleashing Your Inner Mechanic: Decoding the Bayou 220 Solenoid Wiring!

If you’re the proud owner of a Bayou 220 ATV, you know it’s a powerhouse on wheels, taking you through tough terrains and all types of weather. But what happens when your ATV cranks and cranks, but never starts? You may need to look at the solenoid wiring. Don’t panic, though, it’s not rocket science, anyone can become a mechanical whiz with a bit of patience and determination. Let’s dive in and decode the Bayou 220 solenoid wiring, shall we?

First Things First: What is a Solenoid?

Before we dive in, let’s first get a good understanding of what a solenoid is. A solenoid is a coil of wire with an electromagnet inside that can create a magnetic field when a current flows through it. This magnetic field is what moves the plunger inside the solenoid, and that’s what makes it such a critical component of your ATV.

Understanding the Bayou 220 Solenoid

A solenoid, in any machine, serves a specific purpose. In the case of the Bayou 220, the solenoid is responsible for transferring electricity from the battery to the starter motor. When the solenoid receives power from the ATV’s ignition, it creates a magnetic field that pulls the metal plunger inside towards the coil. The plunger, in turn, connects the positive and negative cables from the battery to the starter.

Decoding the Wires

The Bayou 220 solenoid has four wires that you need to know about. Here’s what they do:

  1. Positive Battery cable– Connects the positive terminal on the battery to the solenoid.
  2. Starter Motor Cable– Connects the solenoid to the ATV’s starter motor.
  3. Ignition Switch Cable– Connects the ATV’s ignition to the solenoid.
  4. Ground Wire – Connects the solenoid to the Bayou 220’s frame.
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Signs of a Faulty Solenoid

A faulty solenoid can result in many problems, including a slow start, or no start at all. However, there are other warning signs to look out for, so you know when to investigate the solenoid. Some of these signs include:

  • You hear a clicking noise when you turn the key.
  • The engine cranks, but it doesn’t start.
  • You hear a grinding noise when you turn the key.
  • The battery is fully charged, but the ATV won’t start.

If you notice any of these signs, the solenoid could be the culprit. You’ll need to be sure if you want to replace the solenoid, meaning you need to troubleshoot the wiring.

Troubleshooting the Wiring

One common problem with the Bayou 220 solenoid is the wiring. Using a digital multimeter, you can check the continuity of the wires to determine if any are broken or failing to carry current. Here’s how you can check the wires:

  1. Turn off the ignition: You don’t want to risk accidentally starting the engine while you’re checking your wiring.

  2. Remove the Solenoid Cover: This will give you access to the wires and connections.

  3. Remove the Wires from the Solenoid: Don’t worry; you won’t hurt anything here.

  4. Check the Wires with a Digital Multimeter: You’ll need to set your multimeter to continuity mode, then touch one probe to each end of the wire you’re testing. If the wire has continuity, the meter will beep, indicating that the wire is good.

  5. Repeat with All Wires: Check all four wires for continuity. If any of them fail the continuity test, you’ll need to replace them.

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Replacing the Solenoid

If the wires are all okay, you might need to replace the solenoid itself. That’s easier than you might think. Here’s how:

  1. Disconnect the Battery: You don’t want any electrical currents flowing while you’re swapping out the solenoid.

  2. Remove the Old Solenoid: Disconnect all the wires from the old solenoid and slide it out of its holder.

  3. Install the New Solenoid: Slide the new solenoid into place and attach all the wires, being sure to double-check their proper connections.

  4. Reconnect the Battery: Time to restore power.

  5. Test the ATV: You’re all done! Give it a start and see if it’s fixed.

The Final Verdict

Decoding the Bayou 220 solenoid wiring isn’t as complicated as you might have thought; it’s all about understanding its components and troubleshooting its issues. If you’re facing charging problems, flickers, or even issues with the engine’s performance, you can look no further than the solenoid’s wiring. So, don’t panic when your ATV refuses to start or stalls out. Instead, get down to work with a multimeter, a bit of patience, and a guide like this one. You’ll be back on the road in no time.

Signs of a Faulty Solenoid
You hear a clicking noise when you turn the key.
The engine cranks, but it doesn’t start.
You hear a grinding noise when you turn the key.
The battery is fully charged, but the ATV won’t start.


  1. Borrego, M. The Basics of Solenoids. dummies. https://www.dummies.com/home-garden/car-repair/electrical-system/the-basics-of-solenoids/
  2. A Guide to Using a Digital Multimeter. https://www.instructables.com/A-Guide-to-Using-a-Digital-Multimeter/
  3. Replacing a Solenoid on Your ATV. https://www.doityourself.com/stry/replacing-a-solenoid-on-your-atv