The Kawasaki Mule SX is a range of compact utility vehicles (UTVs). They are intended for outdoor use in various farming, hunting, and landscaping tasks. Its compact design enables it to maneuver easily in tight spaces. It can deliver sufficient power and cargo capacity. However, there are some common Kawasaki Mule SX problems that owners have been complaining about nowadays.
The Mule SX includes a solid yet small engine, a sturdy steel frame, and a compact body shape. It can fit into the majority of pickup trucks. Reliability and versatility are its hallmarks. That makes it a top pick for those requiring a dependable work vehicle to handle challenging environments.
There are some common issues with the Kawasaki Mule SX, despite its reliability. For instance faulty gear shifting, squeaky brakes, and gradual loss of power. Kawasaki responds promptly in light of the potential safety hazards associated with these issues. Inspect your Mule SX periodically to identify and resolve any such issues.
The Most Common Problems With Kawasaki Mule SX are discussed below.
The Most Common Kawasaki Mule SX Problems and Fixes!
One of the most trustworthy automobiles currently available is the Kawasaki Mule Sx. The Mule Sx was constructed by Kawasaki, a reputable manufacturer, to be long-lasting, potent, and adaptable, in addition to being eco-friendly.
Despite this vehicle’s durability, Kawasaki Mule SX’s owners still report a few regular issues that need maintenance.
The following are some of the most often mentioned Kawasaki Mule SX problems that have been raised by consumers so far:
- Electrical issues
- Excessive Vibration
- Jumping Oil Filter Cap
- Poor Fuel Economy
- Suspension Issues
- Engine Issues
- Rattling Noises
- The Throttle Body’s Internal Carbon Deposits
- Faulty shifting gears
- Squeaky Brakes
- Loss of power over time
- Failure To Start
- Overheating
Now we’ll go through these typical issues and provide some valuable pointers on how to resolve those issues.
Electrical issues
Electrical issues in a Kawasaki Mule SX can manifest in several ways. The electrical issues include starting problems, dead batteries, malfunctioning headlights, and intermittent problems.
The electrical system powers the vehicle’s ignition, lights, and accessories. If fuses, relays, and wiring are worn out or damaged. It can lead to electrical problems in the Kawasaki Mule SX. Electrical problems that come and go or even damage to the electrical system. A short circuit or a bad ground connection can cause that.
How To Fix?
When troubleshooting any electrical issue, you should first examine all the connections to ensure that none are loose. In both cases, the battery’s voltage should be checked, and it should be replaced if it is found to be too low.
Troubleshooting electrical issues often involves checking the wiring and connections and fixing or replacing any damaged or corroded connections.
Excessive Vibration
Finding the cause of the vibration on a Kawasaki Mule SX is the first step in addressing vibration problems. You can figure this out by taking the car out for a spin and paying attention to when and where the vibrations feel strongest.
The problem is most likely in the vehicle’s drivetrain when a tremor occurs during acceleration. This includes the gearbox, transfer case, and driveshaft. The vehicle’s suspension or tires may be at fault if the trembling only happens constantly.
How To Fix?
After determining what caused the vibration in the first place, the appropriate repairs can be carried out. If the noise comes from the drivetrain, check for wear and damage to the gearbox, transfer case, and driveshaft.
Moreover, you should check the shocks, struts, and other suspension parts for signs of wear. Repair them if necessary if the trembling is coming from those areas. If the vibration can be traced back to worn or bald tires, the old ones must be swapped out for brand-new ones.
Furthermore, the problem is expected to exist no longer once the necessary repairs are done. If the vibration continues, it may be necessary to send the car to a skilled technician so that additional inspection and repair may be performed.
They may need to inspect the components of the brakes, as well as the steering and suspension, to discover and fix any underlying Kawasaki Mule SX problems.
Jumping Oil Filter Cap
Oil Filler Cap Jumping is a typical Kawasaki Mule SX problem arising from a trifecta of engine design, operating conditions, and oil type.
The Mule SX’s engine is built for higher revs than standard ATVs. The oil may expand because of the increased heat produced by the higher RPM. It causes the crankcase to experience increased pressure. So, the oil filler cap is forced away from the valve cover.
Also, multiple Kawasaki Mule SX owners reported untightened oil filter caps after the oil change. If the oil filter cap in a Kawasaki Mule SX jumps off or becomes loose, it can lead to several problems. The oil filter cap holds the oil filter in place and prevents oil from leaking out of the engine. If the cap becomes loose or jumps off, oil can leak out, damaging the engine and creating a safety hazard.
Oil filler caps have been known to “jump” off of valve covers and crash to the ground when this happens, resulting in spillage and possible engine damage.
Since the engine operates at greater RPM and produces more heat in warmer climates, the problem tends to be more severe in those environments.
In addition, some oils are more likely to experience this than others. High-viscosity oils like SAE 5W-40 and SAE 10W-40 are likely more vulnerable to the problem.
This can happen whether the engine is running, depending on where the oil cap is placed relative to the filler neck. Starting the engine while the lid is still on the filler neck will bounce about and eventually fall off. Moreover, not securely fastening the cap can be a big issue that leads to severe engine damage.
How To Fix?
Maintenance of the oil level and using the appropriate oil for the engine can go a long way toward preventing Oil Filler Cap Jumping.
Be on the lookout for smoke or other indicators of engine overheating, as they could indicate a problem. If the problem arises, it is essential to immediately clean up any oil spill and replace the oil filler cap.
Moreover, regular inspection of the cap’s security and tightness is also recommended. It’s important to make sure the lid is on nice and tight.
In addition, you need to ensure that the cap is clean and free from debris. If the cap continues to jiggle, you should get a new one.
When swapping out the cap, use one that is an exact replacement in size and design. If you use a cap different from the right size or material, you could damage your engine.
In conclusion, it is essential to check that the cap is properly fastened to the filler neck, is not loose, and is not vibrating. If you follow these instructions, you won’t have to worry about your Oil Filler Cap jumping. Moreover, your engine will operate more smoothly and safely.
Poor Fuel Economy
The Kawasaki Mule SX frequently needs help with its fuel economy. Several potential Kawasaki Mule SX problems have been identified, including the following:
- Miscalculating the fuel-to-oil ratio is a leading reason for Kawasaki Mule SX’s subpar gas mileage.
- Incorrect oil types also affect MPG.
- Too much engine wear and poor fuel economy might result from using thick or thin oil.
- Poor fuel economy can also be the result of improper maintenance.
How To Fix?
The recommended fuel-to-oil ratio for two-stroke engines is 90:1, whereas for four-stroke engines, it is 50:1. Too high of a fuel-to-oil ratio is bad for the environment and the engine.
Using gasoline not made for the engine might lead to wasteful petrol consumption and subpar performance. Better petrol mileage can be achieved by switching to a fuel with a higher energy content, such as high-octane petrol or diesel.
In addition, routine maintenance like oil changes, new air filters, and spark plugs may keep an engine running smoothly and save money at the pump. Keeping on top of tire pressure and clearing the air filter can also positively impact MPG.
Suspension Issues
Even though the Kawasaki Mule SX is often used off-road, it can still develop suspension issues. Shocks, springs, and linkages are some parts of the Mule SX’s suspension system. Wear and tear on these parts or damage from an accident can cause a cascade of suspension issues over time.
Suspension problems on the Mule SX typically manifest as abnormal bouncing or rocking, irregular tire wear, or a generally unpleasant ride. Failure of the shock absorbers, the springs, or the suspension links can result in these symptoms. Sometimes, accidents and road hazards can also damage suspension parts.
How To Fix?
The first thing to do if you see any of these signs is to check the suspension for signs of damage or wear. Most suspension issues stem from the shocks, springs, and linkages. Therefore, these should get your full attention. When issues arise, the following step is to fix or replace broken parts.
However, suspension issues on the Mule SX are usually simple to repair. The suspension system might need to be replaced entirely if the damage is significant. If you need help with your Mule SX, you should take it to a professional repair.
Engine Problems
Numerous Kawasaki Mule SX owners have complained about vehicle engine issues. Misfiring or a difficult starting engine are the most common symptoms of this issue. Sometimes it’s impossible to get the motor going. When an engine malfunction occurs, it’s usually because the spark plugs aren’t lighting properly.
Because of clogged spark plugs or broken spark plug wires, this occurs. Incorrect fuel distribution or timing could cause the engine to misfire. Incorrect timing can cause the engine to stall or refuse to start.
How To Fix?
In order to remedy the issue with the engine in the Kawasaki Mule SX, it is necessary to look at the spark plugs, spark plug wires, and any other components connected to the engine. However, it is necessary to obtain replacements for all of these components if it turns out that any of them are defective.
In addition to this, it is essential to check the engine’s timing and the fuel delivery system. Correcting a timing issue is essential for peak performance.
Rattling Noises
There are several potential causes for the rattling sounds experienced by owners of Kawasaki Mule SXs. The engine mounts should be inspected first. Loose or worn engine mounts can let the motor vibrate and generate annoying noises.
The drive belt is another typical suspect. When the belt slips because of wear or looseness, it makes a rattling noise.
The rattle may originate in the vehicle’s exhaust system. A rattling engine could result from exhaust pipes that are either broken or have come free.
If none is the problem, it may result from a worn or loose gearbox or transfer case. Inadequate upkeep or a malfunctioning or worn component could be to blame.
If these parts are fine, the Kawasaki Mule SX problems could be due to a broken or loose internal component, such as a bearing.
How To Fix?
The first step in resolving the rattling sounds is to check for signs of wear or looseness in the engine’s mounting and the drive belt. If any of these parts are damaged or worn, you should get new ones.
The exhaust system should then be checked for damage or missing parts. All of these problems necessitate immediate replacement with brand-new components.
The next step is inspecting the gearbox and gearbox case for damage. Any damaged or worn parts need to be swapped out immediately for brand-new ones.
If you follow these instructions, you should be able to fix the rattling noise problem in the Kawasaki Mule SX.
The Throttle Body’s Internal Carbon Deposits
According to a Kawasaki Mule SX owner, the throttle body had a carbon deposit buildup. It’s not uncommon for Kawasaki Mule SX throttle bodies to accumulate carbon deposits. Which can impede the regulation of air intake into the engine.
When combined with fuel, the air is burned to generate power, and carbon deposits can accumulate within the throttle body. Because of the buildup of soot and oil in the air entering the engine.
When dirt builds up inside the throttle body, it can make the engine work worse, use more gas, and create bad stuff that comes out of the car. Dirt can also make it hard to control how much power the engine makes by sticking the throttle body.
How To Fix?
Kawasaki Mule Sx users should drive their vehicles often enough to prevent this problem from happening.
Faulty shifting gears
Faulty shifting gears in a Kawasaki Mule SX can manifest in several ways. Like difficulty in shifting between gears, slipping gears, transmission getting stuck, etc. The problem could be from different things. Like dirty or not enough transmission fluid, broken or old clutch parts, or a broken shift linkage.
- The low fluid levels can cause the transmission to have difficulty engaging. Also, disengaging gears leads to slipping or jerking while driving. A contaminated fluid or a leak in the transmission system can result in shifting difficulties.
- Another cause of faulty shifting gears is worn or damaged clutch components. The clutch helps to connect and disconnect the engine and transmission. If the clutch is broken or old, it can make it hard to change gears or the gears may slip.
How To Fix?
Keep it free from dirt and debris. Ensure proper maintenance for optimal service.
Squeaky Brakes
Kawasaki Mule SX owners have reported hearing a squeaking noise when applying the brakes. This sound typically indicates that the brake pads have worn down and must be replaced. The brake pads contain a metal indicator that contacts the brake rotor. When the pads are worn, producing a squeaking sound. The driver receives an alert when the brake pads need to be replaced.
Neglecting worn brake pads may also result in harm to other brake components. For instance, the brake rotor can require more extensive repairs or replacements.
How To Fix?
Conduct regular brake system inspections and replace worn brake pads immediately to ensure a safe and dependable vehicle operation.
Loss of power over time
Kawasaki Mule SX owners have reported a gradual loss of power in their vehicles. A dirty air filter or an oil leak may cause this issue. The Kawasaki Mule SX is a tough utility vehicle for rugged terrain and heavy-duty use. Over time, the engine may experience decreased power due to various factors. Like, wear and tear on engine components, fuel system malfunctions, or engine deposit accumulation.
A common cause of power loss in the Kawasaki Mule SX is a dirty or obstructed air filter. Reduced airflow to the engine can lead to decreased performance. Other factors that can contribute to a decline in power output over time;
- degraded spark plugs,
- a weak battery,
- a faulty ignition system,
- low tire pressure,
- poor wheel alignment,
- a dragging brake.
How To Fix?
Ensure proper maintenance to upkeep your engine power and performance.
Failure To Start
Some Kawasaki Mule SX owners say their vehicles occasionally fail to start. The longer the item is left unused, the worse it gets. The ignition switch or fuel pump may be at fault for this problem. The vehicle may also be unable to start if its battery is dead or its connection is faulty. The vehicle can be restarted by jumping it or replacing the battery.
How To Fix?
If the air and fuel filters are dirty and jammed, the engine won’t get the right amount of fuel, and if the air filter is clogged, the engine won’t get enough air to start. Both filters need to be changed frequently to avoid this issue.
Over time, the spark plug might become fouled or destroyed, rendering the engine inoperable. Change the spark plugs regularly to ensure peak performance.
In the same way, a damaged or clogged carburetor can hinder the engine from receiving the right amount of fuel, making it difficult to start. If you want to avoid a problem, clean it.
The engine oil could be contributing to the situation. More lubrication can get to the engine if the oil is old or faulty, which might make it difficult to start. Regular oil changes are essential for optimal engine performance.
A faulty starter motor might make it challenging to start the engine because it prevents the crankshaft from spinning. You should get a new one if the starter motor is not working.
If the battery is low, insufficient electricity will be transmitted to the engine to get it started. The battery must be checked frequently to keep it functioning at peak levels.
Also, check the gasoline pump for any wear or damage. If it becomes broken, you need to get a new one. Additionally, the fuel pump’s pressure and leaks should be examined.
Look for rust or other problems in the ignition system. If the system is damaged, replacement is necessary. Inspecting the ignition system for any signs of misfiring or a weak spark is also essential. If there are issues with sparking or misfiring, you may need to tune or replace the ignition system.
Overheating
A damaged engine can be caused by overheating, so any issues with overheating must be addressed. The Kawasaki Mule SX can experience several types of overheating problems, including:
Cooling system issues: The Mule SX’s cooling system may become clogged or damaged. If left unattended, this could result in significant damage as the engine may overheat.
Fan malfunction: If the cooling fan stops working. The engine may not receive adequate cooling because of overheat.
Low coolant levels: Engines can overheat if they have low coolant levels. Hot weather or when the vehicle is used in a demanding application.
Airflow issues: If there are restrictions in the airflow to the engine. Like clogged air filters or damaged ductwork, the engine may overheat.
How To Fix?
Flushing the radiator, refilling the coolant, and other preventative maintenance are standard solutions to overheating problems. A deeper investigation into the cooling system is required if the issue persists.
A professional will check the Mule SX’s cooling system for obstructions, leaks, and any other problems leading to the vehicle’s overheating. If a clogged radiator is found to be the source of the problem, it is usually easy to fix with a radiator cleaner.
Inspect and replace other cooling system parts as needed. The cooling system includes the radiator fan, thermostat, water pump, hoses, and coolant pipes. Any broken or deteriorating parts should be replaced if you want your Mule SX to function at its best.
Last, the technician must examine the airflow surrounding the radiator to verify sufficient airflow to operate the cooling system adequately.
What Are The Pros and Cons Of Kawasaki Mule SX’s Problems?
Pros Of Kawasaki Mule SX
- Smaller than average
- Are manageable for most garages
- Kawasaki’s “green” technology makes it sustainable.
- High-powered motor
- Low consumption of fuel
Cons Of Kawasaki Mule SX
- Costly maintenance and parts replacement
- Compact design limits vehicle storage.
Bottom Line
The Kawasaki Mule SX is undoubtedly among the top utility vehicles in today’s market. Its powerful engine delivers excellent power, while its compact design provides ample storage space inside and generous cargo capacity outside. The Mule SX may be the perfect choice if you’re in the market for a utility vehicle that ticks all these boxes.
While these problems are relatively common, timely resolution is crucial to avoid additional harm and guarantee the vehicle’s safe operation. Regular maintenance and inspection can also prevent these Kawasaki Mule SX problems.
Happy hustling with your Kawasaki Mule Sx!
FAQ’s
What is the Kawasaki Mule SX’s engine size?
An air-cooled, 401cc, four-stroke single-cylinder engine powers the Kawasaki Mule SX.
What kind of transmission is installed in the Kawasaki Mule SX?
A continuously variable transmission (CVT) on the Kawasaki Mule SX allows for efficient and smooth power delivery.
How much weight can the Kawasaki Mule SX tow?
According to the model and configuration, the Kawasaki Mule SX can tow up to 1,100 pounds.
What is the Kawasaki Mule SX’s payload capacity?
Depending on the model and configuration, the Kawasaki Mule SX can carry up to 400–500 pounds of payload.
What is the Kawasaki Mule SX’s fuel capacity?
A 4.2-gallon fuel tank is available for the Kawasaki Mule SX.