Efficient Steps on How to Test a Lawn Mower Starter

Is your lawn mower not starting up as quickly as it used to? It may be time to test your lawn mower starter. Luckily, testing your lawn mower starter isn’t as complicated as you might think. With just a few simple steps, you can quickly diagnose any issues with your starter and get back to a clean and beautiful yard in no time.

In this section, I’ll guide you through a step-by-step process on how to test a lawn mower starter. Whether you’re a beginner or an experienced DIYer, this guide will provide you with the knowledge and tools you need to troubleshoot a faulty lawn mower starter.

Key Takeaways

  • Testing your lawn mower starter is an easy process that can help identify any starting problems.
  • By following these efficient steps, you can troubleshoot your lawn mower starter quickly and safely.
  • Make sure to disconnect the spark plug wire and use insulated gloves to ensure safety while testing the starter.

Tools You’ll Need

Before jumping into troubleshooting your lawn mower starter, make sure you have the necessary tools on hand:

  • A voltmeter or multimeter: This tool will help you measure the voltage of your starter system and identify potential issues.
  • A wrench: You’ll need a wrench to remove the starter from the engine.
  • A screwdriver: This tool will come in handy when removing screws and other small components.
  • Insulated gloves: Prioritize safety when working with electrical components by wearing insulated gloves to protect yourself from electrical shocks.

Having these tools on hand will help you diagnose any issues with your lawn mower starter and make the necessary repairs to get it up and running again.

Safety First

Before checking your lawn mower starter, it’s essential to prioritize safety. Electrical components can be dangerous if not handled properly.

Firstly, ensure that the mower is turned off and the spark plug wire has been disconnected. This will prevent the engine from potentially starting while you’re working on the starter.

It’s also recommended to wear insulated gloves to prevent any electrical shock.

If the starter needs to be removed for testing, be sure to follow the proper safety protocol when handling the starter. Avoid touching any exposed wires or components, and keep the starter away from any flammable materials to prevent fire hazards.

Remember that it’s always better to be safe than sorry. By prioritizing safety, you can avoid accidents and injuries while checking your lawn mower starter.

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Disconnect the Spark Plug Wire

Before proceeding with the troubleshooting process, it’s essential to prioritize safety. To avoid any accidental starting of the engine while working on the starter, the spark plug wire must be disconnected.

To do this, locate the spark plug wire on the mower’s engine. Use insulated gloves to grip and carefully pull the boot off the spark plug. You may also need to use a wrench to loosen and remove any retaining bolts or clips holding the wire in place.

Once the wire is disconnected, place it safely away from the spark plug to prevent any accidental contact and reconnection during the testing process.

Remember to always prioritize safety while working on any electrical components of your mower. Failure to do so could result in injuries or damage to your mower.

Remove the Starter

Before you can test the lawn mower starter, you’ll need to remove it from the engine. Follow these steps to remove the starter:

  1. Disconnect the battery cables to prevent any accidental electrical shock or injury.
  2. Locate the starter on your lawn mower. It’s typically located on the side of the engine and is connected to the flywheel.
  3. Use a wrench to loosen and remove the bolts that secure the starter to the engine.
  4. Gently remove the starter from the engine, taking care not to damage any of the wiring or components.

Inspect the Starter

Now that you have the starter removed from the engine, take a few minutes to inspect it for any signs of damage or wear and tear. Look for any cracks or breaks in the housing, and make sure the wiring connections are secure and intact. You should also check the teeth on the starter gear to make sure they are not excessively worn or damaged.

If you notice any damage to the starter or the starter gear, it may need to be replaced. If you’re unsure whether the damage is severe enough to warrant a replacement, consult a professional for assistance.

Test the Starter’s Continuity

With the starter removed, it’s time to test its continuity. This will help determine if the starter is functioning properly or if it needs further attention. Here’s how to test a lawn mower starter:

  1. Set your voltmeter or multimeter to the continuity setting.
  2. Place one probe on the positive terminal of the starter and the other probe on the starter housing.
  3. If the meter shows continuity, the starter is functioning properly.
  4. If the meter doesn’t show continuity, the starter may have a broken wire or other issues that need to be addressed.
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Don’t forget to wear insulated gloves and take safety precautions when testing the starter. If you’re unsure about anything, consult a professional for assistance.

Inspect the Starter Gear

As mentioned earlier, the starter gear is a crucial component of the starter system. If the gear is worn or damaged, your lawn mower starter may not work as it should. To troubleshoot a faulty lawn mower starter, you’ll need to inspect the starter gear closely.

To begin, locate the starter gear on your lawn mower. It is typically located near the flywheel and is connected to the starter motor via a bendix. Using a wrench or pliers, remove the gear from the starter motor and examine it for any signs of damage or excessive wear.

If the gear is damaged or worn, it will need to be replaced. You can purchase a replacement gear from your local lawn mower repair shop or online. It’s important to choose the correct gear size and type for your specific lawn mower model to ensure proper functioning.

Tip: While inspecting the starter gear, also check the flywheel teeth for damage. If the teeth are damaged, replace the flywheel as well to prevent future starting problems.

Overall, inspecting the starter gear is an essential step in troubleshooting a faulty lawn mower starter. By identifying and replacing any worn or damaged components, you can ensure that your lawn mower starts reliably every time.

Reinstall the Starter

Now that you’ve tested and inspected the starter, it’s time to reinstall it back into the engine. Make sure the mounting bolts are tightened securely, but be careful not to overtighten them, which could damage the starter or the engine.

Once the starter is properly secured, reconnect the electrical connections, including the battery cable and the starter solenoid wire, ensuring they are tightened snugly. Remember to reattach any brackets or covers that were removed earlier with the appropriate bolts or screws.

Before you reconnect the spark plug wire, double-check all connections and fastenings to make sure everything is in place and secured properly. Once you’re confident that everything is in order, reconnect the spark plug wire to the spark plug.

With the starter now reinstalled, give it a final test to make sure it starts the engine correctly. If you followed all the steps correctly, the starter should work perfectly, and your lawn mower should be ready to go.

Keep in mind that these steps are just a guide, and if you’re not confident in your ability to diagnose or fix your lawn mower starter, it’s always best to consult a professional. But with the knowledge gained from this step-by-step lawn mower starter test, you’ll be well on your way to diagnosing and fixing any starting problems your mower may have.

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By following the efficient steps outlined in this guide, I was able to quickly test my lawn mower starter and identify the issue. I made sure to have all the necessary tools before beginning the troubleshooting process, and prioritized safety throughout. Disconnecting the spark plug wire before testing the starter was a critical step that prevented any potential accidents or injuries.

After removing the starter, I tested its continuity using a voltmeter and was able to determine that it was functioning properly. I also inspected the starter gear for wear or damage, which could have been the culprit of my mower’s starting problems. With the knowledge gained from this guide, I was able to reinstall the starter back into the engine with ease, making sure everything was properly secured and connected.

In conclusion, troubleshooting a faulty lawn mower starter doesn’t have to be a daunting task. By following these efficient steps and consulting a professional if necessary, you can easily diagnose and fix any starting problems with your mower. Remember to prioritize safety, have the necessary tools, and take your time to ensure everything is done correctly. With these tips, you’ll be back to mowing your lawn in no time!


Q: Why is it important to disconnect the spark plug wire before testing the lawn mower starter?

A: Disconnecting the spark plug wire ensures your safety by preventing the engine from accidentally starting while you’re working on the starter.

Q: What tools do I need to test a lawn mower starter?

A: You will need a voltmeter or multimeter, a wrench, a screwdriver, and insulated gloves for safety precautions.

Q: How do I test the continuity of the lawn mower starter?

A: Once the starter is removed, use a voltmeter or multimeter to test its continuity. I will provide a step-by-step guide on how to do this in Section 6.

Q: What should I do if I find wear or damage on the starter gear?

A: If you find wear or damage on the starter gear, it may be causing your mower’s starting problems. I will explain how to inspect the gear in Section 7 and suggest possible solutions.

Q: Can I reinstall the starter myself after testing it?

A: Yes, you can reinstall the starter yourself. Section 8 will guide you through the process to ensure everything is properly secured and connected.