Bad Boy Fuel Gauge Not Working (Fixed)
Have you ever been in a situation where your Bad Boy mower’s fuel gauge isn’t working correctly?
If yes, you know how frustrating and dangerous it can be. And that’s why I have brought this guide for you!
A broken fuel gauge can leave you guessing how much fuel you have left. It potentially causes damage to your equipment and even puts you in harm’s way.
In this article, I will discuss some common reasons for a faulty fuel gauge and provide tips to fix the issue.
Bad Boy Fuel Gauge Not Working – The Reasons

There are several potential reasons why your Bad Boy fuel gauge might not be working. Let me explain each cause before going to the solutions.
1. A Broken Fuel Gauge
A broken fuel gauge is a common reason for a fuel gauge not working.
Over time, fuel gauges can experience wear and tear, making them less reliable. And this is the cause where you’ll have to replace the gauge.
2. Faulty Fuel Sender Unit
A faulty fuel sender unit is another potential cause of a faulty fuel gauge. It sends signals to the gauge to display the correct fuel level.
If the sender unit is faulty, the gauge may display incorrect fuel levels or not display anything at all.
Also Read: How To Change Blades On Bad Boy Mowers? Steps-By-Steps Process
3. The Shaft Has Dirt & Grime
Another possible reason besides a broken gauge and faulty sender unit is the build-up of dirt and grime on the shaft.
Over time, dirt and grime can build up on the shaft. This prevents the shaft from turning smoothly and causes the fuel gauge to malfunction.
4. Improper Gauge Wiring

Finally, improper wiring could also cause a faulty fuel gauge. Sometimes, the wiring may be loose or disconnected, interfering with the gauge’s performance.
In such a case, you might either have to check the wiring for any loose connections or replace the wiring entirely. I’ll explain later!
Bad Boy Fuel Gauge Not Working – The Solutions
Fortunately, there are several solutions for the faulty fuel gauge. In this section, I’ll give a fix for each problem.
1. Solution For The Broken Fuel Gauge
If you have determined that your fuel gauge is broken, you must replace it entirely. You can purchase a new fuel gauge from your local Bad Boy dealer or online.
When installing the new gauge, follow the manufacturer’s instructions carefully to ensure proper installation.
2. Solution For Faulty Fuel Sender Unit
If you suspect a faulty fuel sender unit, you can either replace it or attempt to repair it. To replace the unit, purchase a new one from your local Bad Boy dealer or online.
Note: You must locate the issue and replace damaged parts to repair the unit.
3. Solution For Shaft Has Dirt & Grime
You can clean the shaft thoroughly to improve performance if there is dirt and grime build-up. To do this, you must remove and disassemble the fuel gauge.
Use a clean rag to remove dirt or grime build-up on the shaft. Be sure to reassemble the gauge correctly and test it thoroughly before use.
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4. Solution For Improper Gauge Wiring
If improper wiring is the issue, you can check for loose connections or replace the wiring entirely.
Start by checking all connections to ensure they are tight and secure. If you find any loose connections, tighten them as needed.
If you suspect the wiring is damaged, you must replace it. You can purchase new wiring from your local Bad Boy dealer or online.
Tips To Prevent Future Fuel Gauge Problems
Prevention is always better than a cure, and the same applies to fuel gauge issues. To prevent future fuel gauge problems, you can follow these tips:
- Regularly inspect your lawn mower’s fuel gauge for signs of wear and tear.
- Check your fuel gauge’s wiring regularly to ensure tight and secure connections.
- Keep the fuel sender unit clean and free from grime, debris, or any build-up.
- Avoid rough terrain and excessive vibration; it can cause damage to the gauge.
Also Read: 8 Common Bad Boy Mowers Problems [Fixed]
Frequently Asked Questions (FAQs)
What is a common problem with fuel gauges?
A common problem with fuel gauges is a faulty fuel sender unit. This unit sends signals to the gauge to display the correct fuel level.
Can you fix a fuel gauge?
Yes, you can fix a fuel gauge by replacing the broken parts, cleaning the shaft, or repairing the sender unit.
How do you test a bad fuel gauge?
To test a bad fuel gauge, you will need a multimeter.
Start by disconnecting the fuel sender unit from the fuel gauge. Use the multimeter to test the resistance of the sender unit.
If the resistance is outside the recommended range, the sender unit is faulty and must be replaced.
Conclusion
A faulty fuel gauge can be frustrating, but it is usually fixable. The most common causes of a bad boy fuel gauge not working are:
- A broken fuel gauge.
- A faulty fuel sender unit.
- Shaft dirt and grime.
- Improper gauge wiring.
However, you can fix these issues with the right tools and knowledge. Following the solutions and tips in this article, you can easily fix a bad fuel gauge and prevent future problems.
If you have any further questions, feel free to consult with your local Bad Boy dealer.