Common Problems in Bobcat Zero Turn Lawn Mower


When people are working on their lawns and trying and adopting new techniques. Similarly, many of us are also shifting to the advanced lawn mowers and Bobcat Zero-Turn mowers have a well-deserved reputation for their performance and maneuverability.

The Bobcat Zero-Turn lawnmowers can handle every kind of terrain very easily. However, like other ordinary machines, the Bobcat Zero-turn mowers also have some common issues that irritate the users and disturb their daily mowing routine.

In this blog, I will discuss the Common Bobcat Zero Turn Lawnmower Problems and provide you the valuable troubleshooting tips to ensure your mower works perfectly season after season.


It is very hard to address all the glitches, but here I will discuss and try to address the most common problems which will help you to tackle your mower issue easily on your own.


Problem: A frequent concern among Bobcat zero-turn users is oil leakage, even after replacing the air filter and engine oil.

Troubleshooting/ Fixing:

  • The most asked question about the Bobcat Zero-Turn lawnmower is the oil leakage issue.
  • First thing, you have to pinpoint the leak source, and use a power washer, rag, or degreaser for cleaning. The leak locations include the engine, oil filter, oil drain plug, and gaskets.
  • After locating the leakage point. You can easily stop the leaking oil by taking any suitable remedial action.
  • Moreover, after cleaning ensure the oil filter is properly and correctly placed. Always use the appropriate filter for your lawn mower.
  • Inspect the oil seal for damage. If necessary replace worn gaskets and the oil drain plug.


Problem: Many gardening professionals have reported electrical problems. Bobcat zero-turn to shut off after prolonged use. Or shut down immediately after the start.

Most of the time the problem is encountered when you start your lawnmower and you are trying multiple times.

Troubleshooting/ Fixing:

Diagnosing and addressing electrical problems requires a systematic approach:

  • Check battery connections for cleanliness and tightness. Replace a weak or non-charging battery.
  • Inspect the wire harness for loose or damaged connections, frayed wires, or loose terminals, replacing damaged wiring
  • Verify the condition of safety switches, which may cut off the engine when the seat is empty or the blades engage in reverse. Ensure all safety switches function correctly.
  • Examine the mower’s ignition switch for proper operation and replace it if necessary.
  • Confirm the alternator and voltage regulator’s proper functioning and replace any defective parts.

If issues persist, consider consulting a technician or Bobcat dealer for assistance.


Problem: Another common issue is the Bobcat zero-turn lawn mower failing to start, often due to a faulty ignition switch or starter solenoid. When the key is turned, there is no response from the starter.


  • Replace the ignition switch if there is corrosion or wear.
  • Replace the starter solenoid if it is not working.
  • Locate the relays below the seat on the left side near the front of the mower; since relays are typically interchangeable, swapping them may affect starting behavior.
  • Clean fuse holders using an electric cleaner to remove grime and corrosion. Replace fuses if necessary.
  • Ensure clean battery terminals and grounding, and make sure the battery is fully charged or replaced.


Problem: These machines may produce a high-pitched hydraulic whine, especially when operating at 1/4 throttle and higher. This noise may persist even after changing the hydraulic oil and filter, except when lowering the lift arms.

Troubleshooting/ Fixing:

  • Maintain the hydraulic fluid at the manufacturer-recommended level.
  • Inspect hydraulic lines, fittings, and connections for damage, leaks, and loose connections, replacing any damaged parts.
  • Ensure the secure insertion of the hydraulic filter and check the bottom plate. Change the filter and adjust the bottom plate as needed.
  • If the problem persists or you are unsure how to resolve it, consult the dealer or a professional technician.


Problem: Another common complaint is that the zero-turn mower’s blades won’t engage when the PTO button is pressed. Engaging the blades causes the zero-turn to slow down and eventually stop.


  • Check the wiring harness for continuity to ensure proper functioning.
  • Typically, there are three relays and a safety control module located under the zero-turn seat on the front left side. Since relays are often interchangeable, try switching them to see if it affects blade engagement.
  • Examine fuse holders for dirt and corrosion, replacing fuses if necessary.
  • A malfunctioning voltage regulator/rectifier may cause clutch problems, so inspect and replace if necessary.
  • Also, check the seat safety module.


Problem: Many users have reported that their mower stalls after 20-30 minutes of mowing as if it were out of gas. It may restart briefly after a “cold start” but stalls again. This issue can be encountered due to various factors, including a blocked air filter, dirty spark plug, faulty ignition coil, clogged fuel line, plugged fuel filter, malfunctioning fuel pump, dirty carburetor, or old fuel.


  • If the fuel filter is clogged, consider replacing it or attempting to clean it..
  • Remove and clean any dirty carburetor, plugged air filter, or dirty spark plugs. Replace these components as needed.
  • Use an ohm meter to check for a lack of continuity in the ignition coil. If damaged, replace it. Ensure proper fuel flow from the pump; if it’s insufficient, replace the fuel pump.


Problem: Some users may encounter issues with uneven cutting, where the mower leaves patches of uncut grass or cuts the lawn unevenly.


  • Check the condition of the mower deck’s blades and belts. Worn or damaged blades and belts can lead to uneven cutting. Replace them if necessary.
  • Ensure the mower deck is level. Use a leveling gauge to make adjustments as needed, ensuring it is parallel to the ground.
  • Regularly inspect the tire pressure. Uneven tire pressure can affect the mower’s balance and cutting performance. Adjust the tire pressure to the manufacturer’s recommendations.
  • Keep the cutting deck clean and free of debris. Accumulated grass clippings and debris can disrupt the airflow and cutting performance. Clean the deck after each use.


Problem: Excessive vibration during operation can be unsettling and may indicate an issue with your mower.


  • Inspect the mower’s blades for damage or wear. Replace any damaged or worn blades to maintain balance.
  • Check the mower deck’s pulleys and spindles for wear or damage. Worn components can cause vibration. Replace any damaged or worn parts.
  • Ensure that all mounting bolts and fasteners are securely tightened. Loose bolts and fasteners can contribute to vibration. Periodically check and tighten them as needed.
  • Examine the engine’s motor mounts for signs of wear or damage. Sometimes vibration is increased if the mount of your motor is damaged. Replace worn or damaged mounts.

By addressing these additional problems and following the suggested fixes, you can maintain the performance and life of your zero-turn mower while enjoying a well-manicured lawn.


Bobcat Zero Turn Mowers enjoy a solid reputation for quality and widespread use. The advanced and state-of-the-art design, powerful performance, and easy maneuverability make the Bobcat lawn mower a popular choice.

These mowers are built for the long run and come with cutting decks known for their advanced technology. With one of the best warranties in the industry, Bobcat mowers are well-equipped to tackle any task.

Customer reviews of Bobcat Zero Turn Mowers vary, some are very satisfied with the products while others raise concerns about performance. Of course, everyone has their own choice so it depends on the customer.

While many users appreciate the mower’s performance and durability, issues such as oil leaks, electrical problems, and starting difficulties have been reported.


Some users have encountered problems with the cutting deck, blade engagement, or belt slippage. Keep in mind that experiences may differ based on factors such as the mower’s model, operating conditions, and maintenance frequency.

Before making a decision, potential buyers should carefully evaluate reviews, taking their specific needs and preferences into account.


Reliable machines like Bobcat zero-turn mowers can sometimes face engine malfunctions, and one of the potential causes is contaminated fuel.

When your mower has difficulties starting, it’s a good idea to check if the fuel might be the problem.

Contaminated fuel can clog up the system and lead to blocked filters and your engine starts malfunctioning. Regular maintenance checks, including inspecting and cleaning the fuel filter, can help prevent such issues.


To keep your mower in top shape, regular maintenance is important. Clean it, change the oil, and check for worn-out parts.

The casing drainage filter helps prevent oil leaks in your mower. It keeps unwanted stuff out of your engine.

Bearing failure is one of the most common problems. Over time, bearings wear out and need replacing.

Failing hydraulics can be caused by leaks or damaged parts. Keeping the system clean and well-maintained helps avoid this issue.

Engine misfires can cause problems. Check your spark plugs and make sure they are clean and working right.

If your mower needs service, contact a service center that specializes in Bobcat mowers. They can help with repairs and maintenance.

Yes, a valve problem can affect how your mower runs. It’s important to check and maintain the valves to avoid issues.

You can use a suspension seat. A well-maintained mower with features like a suspension seat can offer smoother rides, ensuring your lawn work goes smoothly.


In a nutshell, understanding and addressing common Bobcat zero-turn mower problems is crucial to maintaining their optimal performance. By following these troubleshooting tips and staying proactive with maintenance, you can enjoy trouble-free mowing seasons with your Bobcat zero-turn mower. So, gear up, tackle those mower issues, and keep your lawn looking its best.


Here are some external resources that can be linked-to in the article to provide readers with additional information and guidance on Bobcat zero-turn mower problems and maintenance:

Bobcat Mowers Official Website: You can check the updated information on the official website of Bobcat. Website: Bobcat Mowers

Lawn Mower Forum: Online forums dedicated to lawnmowers often have active communities where users share their experiences and solutions to common mower problems. Website: Lawn Mower Forum

Mower Parts and Accessories Retailers: You can get updated information about mower parts and accessories with resale options on different retailers’ websites. Example: Mower Parts Group

Naveed Aanjum author

About Naveed A Hashmi

In my childhood, I used to see my parents while working in the land, for these reasons today I have been serving the same as our own tradition and culture. I thus love to stay in it, because I want to learn something advanced and new so that I may improve my farm’s contour and help others with my experience.

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