How to start a lawn mower with a bad starter

Starting your riding mower is the first step in any lawn mowing job. So what do you do if your mower doesn’t start? It could be the lawn mower starter or the battery. When your mower won’t start, and you need to get the job done, it is time to troubleshoot and find an alternative method to get that machine running. 

Importance of troubleshooting and alternative methods

In this short guide, we will look at the components of the starter system. We will then look at how to diagnose the issue. Repair or replace the offending part and get back on the lawn again. 

Understanding the Starter System

Definition and function of a starter in a lawn mower

The whole point of an engine starter is to initiate the combustion process by turning the engine. This could be a pull-start rope, but with larger machines, it’s a little more complicated than that. The key components are a solenoid, the starter motor, ignition switch and of corse a spark plug.

The solenoid relay switch receives an electrical signal when turning the ignition key. Once this is activated, a current flows from the battery to the starter motor, which cranks the engine and starts the machine. 

Common symptoms of a bad starter

The most common symptom is the dead click you hear when you turn the key to start the engine. The first thing to check is the battery. Once you have ruled out a flat or faulty battery, You need to replace the spark plug. If that does not work, it is the connections, ignition swatch, or the starter solenoid. 

Now, let’s identify where the issue lies and fix it. 

Lawnmowing101 Membership

Build a six-figure lawn care business

• How to get customers fast
• Systemize your business
• Work less and earn more
• Build a lifestyle business

Join today

Lawn Care Software

Get Your Lawn Care Business Running Smoothly

Easier for you and your customers. Jobber helps you quote, schedule, invoice, and get paid—all in one place.

Try Jobber– free trial!

Troubleshooting a Bad Starter

If you suspect that you have a faulty starter motor, the first step is to confirm that this is indeed the issue. Start by replacing the spark plug or pulling off the existing plug and checking for a spark. If this is fine, move on to the battery and confirm it has enough charge. Check the connections; if you have a rat tail file, you could try filling the inside of the battery terminal connectors and replacing them. I have had this fix the issue before. 

Failing that, check the condition of the connection cable. If that looks fine, it is either the starter motor or the solenoid. It’s had to explain how to do that in writing, so this video walks you through that process. 

Alternative Methods to Start a Lawn Mower with a Bad Starter

Now that you have watched the quick video and determined if it is the solenoid or the starter. You can jump online, order the part and then bypass the offending part, and get that lawn done. When attempting to start a lawn mower with a bad starter, always ensure the blades are disengaged. Not only is this safer, but it also will make the machine easier to start. 

As shown in the video above, you have seen how to bypass the starter motor

This next video shows you how to start the mower engine when your solenoid is broken

This method bypasses the solenoid by directly connecting the positive battery terminal to the starter motor using Jumper Cables. 

Repairing or Replacing the Starter

You must repair or replace the unit if you have a bad starter. A lot of the time it is easier to relpace then repair as starter can be complex and labour intensive to fix. You may even find that your repair costs exceed the cost of replacing the starter. 

If you replace the part with a new one, you have a couple of extra benefits, such as the warranty and the reduction of further problems arising. 

Listen to audiobooks while you work.

With a sixty-day free trial

Discover millions of ebooks, audiobooks, and so much more for just $9.99/month.

• No limits
• Titles you love
• Exclusive originals
• Tailored for you

60 Day free trial

Steps to repair a faulty starter

After removing the starter, carefully disassemble it. Remember to photograph the position of each component and its connections. Keep you your screws, bolts, and other small parts in a container. 

Check all the components for signs of damage or wear. This includes the armature and brushes, and replace them if necessary. Clean all connections and terminals with a wire brush or electrical contact cleaner for better conductivity. Reassemble the starter in the reverse order that you pulled it apart. The video below will walk you through the process. 

Installing a new starter

If you are not reinstalling an original part, ensure the generic starter is compatible with your machine. Briggs and Stratton have a guide on their starter motors.

Replacing a solenoid

If you went through the test in the first video and your solenoid needs replacing, here is a video that will help you go through the steps needed to replace your solenoid. 

Conclusion: How to start a lawn mower with a bad starter

In conclusion, starting a lawn mower with a bad starter can be challenging, but with the right knowledge and techniques, you can troubleshoot, repair, or bypass the starter effectively. Understanding the starter system, diagnosing issues, and exploring alternative starting methods can keep your mower running smoothly and easily maintain your lawn.

Regular maintenance and proper care of the starter system are essential for preventing starter issues and ensuring the longevity of your mower. Following the tips and techniques outlined in this guide, you can confidently tackle starter problems and enjoy a well-functioning lawn mower for years.

Remember, troubleshooting a bad starter may require patience and technical skills. Still, with determination and the right approach, you can successfully start your lawn mower and keep your outdoor space looking pristine. Stay proactive in addressing starter issues and prioritize regular maintenance for a hassle-free lawn care routine.

Frequently Asked Questions

What Happens When A Lawnmower Runs Out Of Oil?

Why Is Your Lawn Mower Not Cutting Evenly?

How to Change the Spark Plug?

How do you Service a Lawn Mower?

Grow a six-figure lawn care businessStarting in your spare time

Get tips & tricks on how to grow a profitable lawn care business delivered to you inbox every week. 

NameName

EmailEnter your email address

Get Insider Tips