how to test ignition module on lawn mower

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As the grass begins to grow and the sun starts to shine, it's time to dust off your lawn mower and get ready for some much-needed yard maintenance. However, nothing can be more frustrating than a lawn mower that won't start. Before you start panicking and calling for professional help, there's a simple way to troubleshoot and potentially fix the issue - testing the ignition module.

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The ignition module is a crucial component of your lawn mower's starting system. It is responsible for generating the spark that ignites the fuel in the engine, ultimately powering up your lawn mower. Over time, this module can wear out or become faulty, leading to starting issues. But worry not, because with a few simple steps, you can test your lawn mower's ignition module and determine whether it needs to be replaced or not. So, grab your tools and let's get started!

Step 1: Gather Your Tools
Before beginning the testing process, make sure you have all the necessary tools at hand. You will need a spark plug tester, a multimeter, and a screwdriver. These tools are readily available at any hardware store and are relatively inexpensive. Make sure to wear proper safety gear, such as gloves and eye protection, while working on your lawn mower.

Step 2: Locate the Ignition Module
Next, you need to locate the ignition module on your lawn mower. It is typically located near the engine, usually on the side or under the flywheel. Refer to your lawn mower's manual to find the exact location if you're having trouble locating it.

Step 3: Remove the Spark Plug Wire
Using the screwdriver, gently disconnect the spark plug wire from the spark plug. This step is essential for your safety as it prevents the engine from accidentally starting during the testing process.

Step 4: Test the Spark Plug
Now comes the time to test the spark plug. Insert the spark plug tester into the spark plug boot and ground it to a metal surface on the engine. Pull the starter cord, and if there's a spark, it means your spark plug is functioning correctly. If there's no spark, you may need to replace the spark plug.

Step 5: Test the Ignition Module
Using the multimeter, set it to the ohms setting and connect the positive lead to the ignition module's primary terminal and the negative lead to its ground. The reading should fall within the range specified in your lawn mower's manual. If it doesn't, it indicates a faulty ignition module that needs to be replaced.

Step 6: Check for Continuity
If the previous step didn't indicate any issues with the ignition module, you can check for continuity to be sure. Set the multimeter to the continuity setting and connect the positive lead to the secondary terminal of the ignition module and the negative lead to the spark plug wire. Again, the reading should fall within the range specified in your manual. If it doesn't, it's a sign of a defective ignition module.

Step 7: Replace the Ignition Module
If the readings from both steps 5 and 6 are not within the specified range, it's time to replace the ignition module. You can purchase a new one from your lawn mower's manufacturer or any reputable hardware store. Follow the instructions in your manual to install the new ignition module correctly.

In conclusion, testing the ignition module on your lawn mower can save you time and money by potentially fixing starting issues. By following these simple steps and using the right tools, you can easily troubleshoot and determine whether your ignition module needs to be replaced or not. Remember to always prioritize your safety and refer to your lawn mower's manual for specific instructions. Happy mowing!