Top Kawasaki Mule Pro FXT Problems With Quick Fixes

Kawasaki brought their Mule Pro FXT to the UTV market in 2014. It is, thus, their latest series of 4-stroke engine utility vehicles. Kawasaki promised to introduce their most advanced engine with many high-end features for the Pro FXT vehicle.

But has Kawasaki been able to fulfil its commitment? Plus, where would the Mule Pro Fxt series stand in the long line of Kawasaki UTVs? We found a few fundamental Kawasaki Mule Pro FXT problems as we investigated them. It included oil leaks, transmission problems, inconsistency in speed, overheating problems, and issues with the engine. Unfortunately, most of these problems were visible in other Kawasaki Mule vehicles.

So, it is disappointing to see that Kawasaki hasn’t fixed them. Here, we will go through the top problems of Mule Pro FXT and their solutions. If you have a Pro FXT or plan to buy it, read this article for a better investment.

Kawasaki Mule Pro FXT Problems

Top Kawasaki Mule Pro Fxt Problems And Solutions

Top Kawasaki Mule Pro Fxt Problems And Solutions

The Kawasaki Mule Pro FXT, like any vehicle, may encounter some problems. It is important to be aware of these issues in order to properly maintain and address them. Some common problems reported by Kawasaki Mule Pro FXT owners include electrical issues, transmission problems, and suspension concerns. Electrical issues can range from a faulty battery to problems with the wiring harness. Here we discuss the top Kawasaki Mule Pro Fxt problems and solutions:

Crash Hazard Due To Steering Problems

Kawasaki has recalled all of their USA models for Mule Pro FXT from 2015 to 2020. According to the Consumer Product Safety Commission (CPSC), these vehicles have serious problems with their steering. They reported that the steering shaft excessively wore out too soon.

As a result, riders will lack maintenance control over it, which might cause serious safety hazards. However, no accident problems have been reported due to these safety hazards and steering problems. Kawasaki recalled the off-road UTV as a safety concern.


The wear and tear of the steering on Mule Pro FXT is a structural and design fault. So, there’s hardly anything you can do. We suggest you take the motorcycle to a mechanic or official dealer for a complete checkup. You can claim a quick replacement if there’s any problem with the wearing-out steering.

The cargo bed on the Kawasaki Mule Pro FXT is spacious and versatile, allowing for easy transportation of equipment and supplies. Noise pollution is a growing concern in urban areas, causing discomfort and health issues for residents.

Inability To Reach The Top Speed And Inconsistency In Speed

Inability To Reach The Top Speed And Inconsistency In Speed

Kawasaki has enabled their Mule series to reach a maximum of 46MPH speed. Unfortunately, Mule Pro FXT rarely reaches the 46MPH speed. In fact, many users have complained that their UTV has failed to reach 15MPH speed. Also, there needs to be more consistency in the speed. So, while riding the Pro FXT, many riders saw the speed going up and down.

It resulted in massive dissatisfaction among the riders. Also, it was a major safety hazard due to problematic speed. The problem of inconsistent speed and not reaching top speed happens because of worn-out belts. Also, a damaged and clogged fuel tank filter is responsible for it. So, here’re the top solutions for the speed problem.

Replace The Belt

The belt driver maintains consistency and combines the front and rear wheels. As it wears out, the UTV loses its speed. So, you must replace the Pro FXT driver belt. It will help you enjoy improved speed. The belt will cost you around $125 to $200. Replacing the belt requires a complete knockdown of the utility vehicle.

So, you should call a mechanic to fix it. The head gasket on the Kawasaki Mule Pro FXT is a common problem many owners have faced. Paved roads provide a smooth and comfortable driving experience, especially for Kawasaki Mule Pro FXT vehicles.

Cleaning And Replacing The Fuel Filter

Cleaning And Replacing The Fuel Filter

Clogs in the fuel filter cause inefficiency in the engine. The maintenance schedule for the Kawasaki Mule Pro FXT is crucial in ensuring its optimal performance and longevity. So, it fails to deliver maximum power steering output and reduces speed. So, you must check the fuel filter for clogs and try cleaning it. Ideally, you should maintain the fuel supply filter for every 100-hour ride.

  • You should find the fuel filter close to the fuel pump
  • As you open up the pump, you will find the filter with ease
  • Use gloves to grab the filter and remove it from the vehicle
  • Then, you may wipe it with a brush and liquid detergent
  • Also, check the filter for residues and try cleaning it

Mostly, cleaning the filter will boost the speed slightly. If it continues showing inconsistency, replace the filter. You may choose the Kawasaki 49019-0013 Fuel Filter as a quick replacement option. It costs less than $10 and delivers outstanding performance.

Problems With The ECU System

You may sometimes see that your Pro FXT is having issues starting correctly. Some vehicles will start and then shut off automatically. This automatic shut-off may happen immediately or after riding the UTV for a few miles. In the worst scenario, your Pro FXT from Kawasaki won’t start.

The problem happens because of a faulty spark plug Electronic Control Unit (ECU) system. It is a computer-based system and works like the brain of your vehicle. There are sensors in the Mule engine, and the ECU collects information from these sensors.

Thus, the ECU automotive style controls the engine performance and output depending on the collected data. Things become problematic if the sensors deliver accurate data or the ECU needs to convert it accurately. The ECU will limit the performance of the Mule engine. So, it won’t start. It also causes inconsistency in speed.

Change The Ecu System

Change The Ecu System

Whether you want to fix the starting problem of the Mule Pro FXT or increase its speed, changing the ECU system will be the best decision. You may also get an ECU tuner to boost its performance. You may integrate your Pro FXT with several performance tuning and upgrading accessories.

These two performance enhancers are gettable at around $35. You may integrate them with the Kawasaki Mule Pro FXT to boost the ECU performance. You may also delimit the ECU to increase the top speed of your Mule vehicles.

Fault Code 51

Although not as common as potential issues such as engine incidents of steering problems or wearing out steering, fault code 51 for Pro FXT is not rare. Fault code 51 refers to the voltage irregularity of the battery. Mostly, the ECU sensor has failed to read the accurate data. Or the battery is delivering inconsistent output.

As it happens, fault code 51 will keep beeping. If it persists, the ECU will stop working. So, your vehicle will come to a standstill. Times have changed, and so have the problems Kawasaki Mule Pro FXT owners face. The clutch of the Kawasaki Mule Pro FXT is not functioning properly.

Changing The Battery And Ecu

Depending on the reason for fault code 51, you must replace either the battery or the ECU. We suggest you check the battery with a multimeter. Connect it with the negative and positive probes of the battery and check the voltage output.

If there’s inconsistency, you should call a mechanic. If the battery is damaged, change it. It will cost you $50. Plus, the cells may sometimes dry out due to exposure to extreme cold or heat issues. If it is the cause, try fixing the damaged battery voltage cell.

You may, sometimes, find the battery is fine. So, test the ECU sensors and get a new one if it is the root of the problem. You will then need to replace the ECU or the faulty sensor to fix the fault code. Sometimes, the earthing circuit of coil number 1 may be damaged. So, check it and see if it requires replacement.

Idling Problem

The idling issue is another common problem for all the Mule series utility vehicles. If the problem starts repeatedly, you will experience the engine dying off without any alerts. You will also see continuous sputtering.

The problem occurs due to carbon buildup in Pro FXT’s throttle body. The carbon development will look like black soot. Also, it forces the throttle blade to close and stop working. This problem has two different aspects:

  • As you gas up the pedal, Mule Pro FXT accelerates fast; likewise, a new one
  • As you release pressure from the pedal, it doesn’t decelerate or reach an absolute standstill position.

Clean The Throttle Body And Its Parts

You must clean the throttle body to eliminate carbon development. It also helps in increasing the speed of the utility vehicle. First, access the throttle body and remove it from the vehicle. Then, use WD-40 cleaner to spray over the entire throttle. Allow the WD-40 cleaner to work on the metal parts for a few minutes. After that, scrub and clean it off with a toothbrush. Also, follow these steps:

  • Use your fingers to access the throttle blade of the ECU system. Locate the shaft bearing area and spray the cleaner on it.
  • Continuously open and close the shaft bearing while cleaning. It helps you remove all the residual development from the shaft and ECU sensors.
  • Finally, you must test whether the electronic system is working correctly. For this, remount the system and turn on your UTV. If everything is fine, the throttle blade will open.

Transmission Problems And Issues With Shifting Gears

One common problem that owners of the Kawasaki Mule Pro FXT may experience is transmission issues and difficulties with shifting gears. This can be frustrating and can impact the performance and functionality of the vehicle.

There are a few potential solutions to these problems. By addressing transmission issues promptly and taking appropriate measures, owners can ensure that their Kawasaki Mule Pro FXT operates smoothly and efficiently for years to come.

  • Check Fluid Levels: Low transmission fluid levels can cause shifting issues. Make sure to regularly check and maintain proper fluid levels according to the manufacturer’s recommendations.
  • Inspect For Damage Or Wear: Examine the transmission components for any signs of damage or wear, such as worn-out clutch plates or damaged shift forks. If any parts appear to be damaged, they may need to be replaced.
  • Adjust Clutch Cables: Improperly adjusted clutch cables can affect shifting smoothness. Ensure that the clutch cables are properly adjusted according to the manufacturer’s specifications.
  • Seek Professional Assistance: If the above steps do not resolve the issue, it is advisable to consult a professional mechanic or authorized Kawasaki dealer who specializes in ATV repairs. They will have the expertise and knowledge to diagnose and fix any complex transmission problems.

Overheating And Cooling System Problems

Overheating and cooling system problems can be a common issue with the Kawasaki Mule Pro FXT. One possible cause of overheating is a malfunctioning thermostat, which can prevent the engine from properly regulating its temperature. Another potential problem could be a clogged radiator or coolant system, which can restrict the flow of coolant and lead to overheating.

To address these issues, it is important to regularly inspect and maintain the cooling system of your Kawasaki Mule Pro FXT. This includes checking the coolant levels, cleaning or replacing the radiator if necessary, and ensuring that all components are in proper working order. If you continue to experience overheating or cooling system problems, it may be best to consult a professional mechanic who specializes in Kawasaki vehicles for further diagnosis and repair.

Electrical Issues Such As Battery Drain Or Faulty Wiring

Electrical Issues Such As Battery Drain Or Faulty Wiring

Electrical issues can be a common problem with the Kawasaki Mule Pro FXT. Some owners have reported experiencing battery drain or faulty wiring, which can lead to issues with starting the vehicle or powering certain components. To address these problems, it is recommended to first check the battery and charging system to ensure they are functioning properly.

If there is a drain on the battery, it may be necessary to inspect the electrical system for any faulty wiring or connections. In some cases, it may be necessary to replace damaged wiring or components to resolve the issue. It is always advisable to consult with a qualified technician or seek assistance from an authorized Kawasaki dealer for any electrical problems with your Mule Pro FXT.

Suspension Problems And Difficulties With Ride Quality

Suspension Problems And Difficulties With Ride Quality

While the Kawasaki Mule Pro FXT is a popular utility vehicle, some owners have experienced issues with the suspension and ride quality. One common problem is a stiff and jarring ride, especially on rough terrain. This can be attributed to the stock suspension setup, which may not provide enough damping to absorb bumps and shocks adequately.

To improve ride quality, some owners have opted to upgrade the suspension components with aftermarket options that offer better performance and adjustability. Additionally, ensuring proper tire pressure and regularly maintaining the suspension system can help alleviate some of these issues. If you are experiencing difficulties with the ride quality of your Kawasaki Mule Pro FXT, it may be worth exploring these solutions to enhance your overall driving experience.

Issues With The Braking System And Stopping Power

The Kawasaki Mule Pro FXT is a popular utility vehicle known for its durability and versatility. However, some owners have reported issues with the braking system and stopping power of the vehicle. These issues can pose a safety concern, especially when operating the vehicle on uneven terrain or carrying heavy loads.

If you are experiencing problems with the braking system or noticing a decrease in stopping power, it is important to address these issues promptly. Consult with a certified Kawasaki dealer or mechanic who can diagnose and repair any potential problems with the braking system to ensure the safe operation of your Kawasaki Mule Pro FXT.


Kawasaki Mule Pro FXT has been in the UTV market for only eight years. Yet, its number of problems is on the higher side. Thus, Kawasaki Mule Pro FXT problems are disappointing for the users. If you plan to purchase a used Pro FXT, we suggest you ride it for 20 miles at least. Also, call a mechanic to check it to avoid future issues with the utility vehicle.

Also, both new and old users must maintain the UTV timely. It boosts performance and removes many inevitable problems. Kawasaki’s commitment to quality and customer satisfaction ensures that any issues will be addressed and resolved, making the Mule Pro FXT a solid option for those in the market side-by-side.


1.What Is The Fastest Kawasaki Mule?

Ans: The fastest Kawasaki Mule currently available is the Mule Pro-FXT with a top speed of around 45-50 mph. This versatile utility vehicle is designed for work and play, offering a comfortable and spacious cabin that can seat up to six passengers.

2.Is Kawasaki Mule 4×4?

Ans: Yes, the Kawasaki Mule is available in a 4×4 configuration. The Kawasaki Mule Pro FXT is a versatile utility vehicle with exceptional performance on and off the road. With its 4×4 configuration, this vehicle is built to handle tough terrains and challenging working conditions.

3.How Many Cc Is A Kawasaki Mule Pro Fxt?

Ans: The Kawasaki Mule Pro FXT has a displacement of 812 cc. This powerful engine allows the Kawasaki Mule Pro FXT to tackle terrain easily. Whether navigating rough trails or hauling heavy loads, the Mule Pro FXT’s impressive displacement ensures consistent performance and reliable power.

4.Who Makes The Mule Pro-Fxt Engine?

Ans: Kawasaki manufactures the Mule Pro-FXT engine. It is a powerful and reliable engine that provides the necessary strength and performance for tackling any task or terrain.

5.What Is The Top Speed Of The 2024 Mule Pro Fxt 1000?

Ans: Answer The top speed of the 2024 Mule Pro FXT 1000 is approximately 45-50 miles per hour. This makes it a versatile vehicle for both work and play. Whether you must transport heavy loads around the ranch or explore off-road vehicle trails with friends and family, the Mule Pro FXT 1000 can handle everything.

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