If you’re an avid outdoor enthusiast, you know that riding an ATV can be a thrilling experience. And when it comes to all-terrain vehicles, Kawasaki is a name that is well-known for its quality and durability. The Kawasaki Brute Force 750 is no exception. However, even the best quads can have their share of problems.
The common Kawasaki Brute Force 750 problems include starting woes, overheating, radiator fan troubles, belt slippage, corroded connectors, 4WD mode glitches, oil leakage, and excessive noise. However, they can be fixed with proper care and timely repairs.
In this article, I’ll take a closer look at the 8 most common reported issues that Kawasaki Brute Force 750 owners may face and provide helpful solutions to fix them. So, whether you’re a seasoned rider or a beginner, keep reading to learn more.
Basic Features of Kawasaki Brute Force 750:
4-stroke, V-twin, SOHC, liquid-cooled
42.7 lb-ft @ 4750 rpm
Bore x Stroke
85.0 x 66.0mm
DFII® with two 36mm throttle bodies
AT 25 x 8-12
AT 25 x 10-12
Dual hydraulic 176mm discs with 2-piston calipers
Sealed, oil-bathed, multi-disc with independent park brake
Front Suspension / Wheel Travel
Double wishbone/6.7 in
Rear Suspension / Wheel Travel
Double wishbone/7.5 in
Electronic Power Steering (EPS)
Now, let’s move to the discussion of Kawasaki Brute Force 750 problems and troubleshooting procedures.
1. Starting Issues in the Kawasaki Brute Force 750:
One of the most common issues with the Brute Force 750 is that the engine takes time to start and shows complications, especially in cold or harsh temperatures. Unfortunately, this is a problem that many riders face when trying to start their Kawasaki ATVs in freezing weather.
There are various causes for which the vehicle shows starting issues. One of the most common reasons is inappropriate battery power.
The battery may not provide enough power to start the engine, especially in cold weather. Poor wiring can also cause starting issues, preventing the battery from delivering enough power to the engine.
Another common cause of starting problems is a defective ignition switch. The ignition switch sends power to the engine when you turn the key. If it’s faulty, it may not be able to send power to the engine, preventing it from starting.
Faulty spark plugs can also yield starting issues. If the spark plugs are worn or damaged, they may need more spark to ignite the fuel in the engine. This can cause the engine to sputter or not start at all.
Finally, a damaged ECU can also cause starting problems. The ECU is responsible for controlling various functions of the engine, including the ignition and fuel injection. If it’s damaged, it may not be able to send the right signals to the engine, preventing it from starting.
In some cases, the ATV won’t crank at all, and when you turn the key on the dashboard, the warning indicator, like the neutral light speedometer, etc., comes on.
How to Fix:
You can fix the starting issue in the Kawasaki Brute Force 750 by following the steps I mentioned below:
Insufficient levels of fuel
Starting problems in the vehicle can be due to inappropriate fuel levels. Therefore, fill the gas tank up to the recommended amount of fuel and ensure the fuel line is working properly.
Damaged spark plugs
Damaged or worn-out spark plugs in the vehicle can create starting issues. Thoroughly clean the spark plugs and, if damaged, replace them with new ones.
Problems with the battery
Next, if the starting issue is due to a damaged battery, it is better to inspect it and get it recharged if the problem is minor. However, replacing the battery with a new one is better to avoid the issue if the battery is dead.
Problems with the starter solenoid
The starter solenoid issue can also create a starting issue in the vehicle. It is better to replace it with a new component as it can cause engine failure.
Corroded wirings and connections
Finally, inspect all the wiring and connections of the vehicle. If the vehicle has loose or corroded wiring, replace them with new ones, or you can tighten the loose wiring too.
2. Overheating Problem:
Overheating in the Brute Force 750 can be caused by several factors, including a blown head gasket, issues with the radiator fan, faults in spark plugs, clogging in the radiator, and poor vehicle transmission. If this issue is ignored for a prolonged period, the rider can be at significant risk.
If you own a '12 or '13 Kawasaki Brute Force 750 ATV, you may experience a recurring issue with the overheating lights illuminating during rides on dry trails, even with outside temperatures in the mid 70's. This can be an alarming and frustrating experience, as it can significantly impact your ability to ride safely and enjoyably.
How to Fix:
To prevent overheating in your Kawasaki Brute Force 750, follow these step-by-step solutions:
- Step 1- Maintain Proper Coolant Level: Regularly check the coolant level in your ATV’s radiator. Ensure it is at the recommended level as specified in the owner’s manual. If necessary, top up the coolant with the appropriate mixture of coolant and distilled water.
- Step 2- Inspect Radiator and Cooling System: Periodically inspect the radiator and cooling system for any signs of damage, clogs, or debris accumulation. Clear obstructions and ensure the radiator fins are clean and free from dirt or mud.
- Step 3- Clean Air Intake: Ensure the air intake on your Brute Force 750 is clean and debris-free. Remove any dirt or obstructions that may restrict airflow to the engine and radiator. This helps to maintain optimal cooling performance.
- Step 4- Verify Cooling Fan Operation: Check that the fan operates correctly. Start your ATV and let it idle until it reaches operating temperature. Observe if the cooling fan kicks in as it should. If not, have the fan motor and associated wiring inspected and repaired.
- Step 5- Monitor Riding Conditions: Be mindful of riding conditions, especially in hot weather or when tackling challenging terrains that may increase engine workload. Take regular breaks during extended rides to allow the ATV’s cooling system to cool down.
- Step 6- Upgrade to Synthetic Oil: Consider switching to a high-quality synthetic oil formulated for ATV engines. Synthetic oils generally offer better heat resistance and lubrication properties, helping to reduce engine heat buildup.
- Step 7- Install an Aftermarket Cooling Kit: For extreme riding conditions or an overheating issue persists, consider installing an aftermarket cooling kit. These kits often include components such as oversized radiators, high-flow water pumps, or other cooling fans, enhancing the cooling capacity of your ATV.
I highly recommend the All Balls Cooling Fan Assembly to keep your ATV’s temperature under control. This exceptional product is designed to deliver top-notch performance, ensuring you can ride with peace of mind.
3. Belt Slippage Issue:
One common issue reported by owners is belt slippage. The Kawasaki Brute Force 750 is equipped with a tough belt to handle the rigors of off-roading.
However, loose or slipping belts can be a frustrating problem for riders. When mud and debris accumulate in the vehicle, it can get into the internal components like the belt, causing it to slip and lose its grip.
Let me tell you why belts slip.
Belt slip occurs when the power generated exceeds the level of friction between the belt and the clutch sheaves. This issue can be attributed to incorrect spring pressures or flyweights. When the spring pressures or flyweights are not properly set, it can lead to insufficient grip between the belt and the clutch sheaves, resulting in belt slip.
Several factors can contribute to belt slippage in the Kawasaki Brute Force 750. One of the most common is the improper setting of the belt tension.
The belt can slip or wear out prematurely if it is too loose or tight. Another factor is a worn-out belt that needs to be replaced. Over time, belts can become worn and lose their grip, causing slippage.
Finally, excess power delivery to the wheels can also pressure the belt, leading to slippage. This is especially true if the rider carries a heavy load or tows a trailer.
When the vehicle is under heavy strain, the belt may slip, causing a loss of power and reduced performance.
How to Fix:
You can follow the steps below to fix the belt slippage:
- STEP 1: Inspect the flyweights and clutch springs of the vehicle.
- STEP 2: Check the pressure and correct its level to avoid the belt slippage issue.
- STEP 3: Set the clutch springs at appropriate settings and adjust the flywheels too.
- STEP 4: You can also deal with the belt slippage issue by replacing the worn-out or damaged belt with a new one.
If you are planning to replace or install a new belt in your Brute Force 750, follow these steps:
- STEP 1: It is recommended to adjust the deflection in the vehicle.
- STEP 2: The next step is to inspect and adjust the clutch springs and flyweights at their appropriate place to move freely and without any hindrance.
- STEP 3: Clean away the sheave surface and set the torque to its recommended value. In this way, you can install new belts and deal with the issue of belt slippage in the vehicle.
You can also refer to the video guide below to adjust the belt in your ATV:
4. Issues with the Radiator Fan:
The radiator fan plays a crucial role in maintaining the engine’s temperature. It helps dissipate the engine’s heat and prevent it from overheating. However, if the radiator fan isn’t working properly, it can lead to serious problems that can damage the engine and other vital components.
Issues with the rear bus connector can also cause problems with the radiator fan. If the connector is loose or damaged, it can prevent the radiator fan from receiving the necessary signals from the ECU, which can cause it to fail.
In a reported case concerning a 2005 Brute Force 750, the user encountered an issue with the cooling fan. However, it operated normally when he connected the fan directly to the battery.
However, upon joining the two wires linked to the fan switch on the radiator, the fan turned on briefly before shutting off.
The user confirmed that all fuses were in good condition but noted that one of the prongs on the breaker had snapped off while removing it.
To troubleshoot further, they used a voltmeter and discovered a lack of power to both the fan switch wires and the breaker.
Despite the fan functioning correctly when connected directly to the battery, the user expressed confusion regarding the absence of power in the wires connected to the breaker.
At this point, the user has exhausted their ideas and is seeking additional insights to resolve the issue.
How to Fix:
To address the issue of the cooling fan not receiving power from the breaker, follow the steps I mentioned below to troubleshoot and potentially resolve the problem:
- STEP 1- Replace the Breaker:
Since one of the prongs on the breaker has snapped off, it is essential to replace it.
First, obtain a new breaker from a reputable dealer or Kawasaki service center. Then, install the new breaker properly, ensuring it is securely connected.
- STEP 2- Check for Power Supply:
Use a voltmeter to test the power supply to the wires connected to the breaker. Start by checking the voltage at the battery terminals to ensure a stable power source.
Then, test the power supply at various points along the circuit, including the fan switch wires and the breaker connections. If there is no voltage detected, proceed to the next step.
- STEP 3- Inspect Wiring and Connections:
Carefully examine the wiring and connections associated with the fan switch, breaker, and fan assembly.
Look for any signs of damage, loose connections, or corroded terminals. Repair or replace any damaged components, ensuring all connections are tight and secure.
- STEP 4- Test the Fan Switch:
Use a continuity tester or ohmmeter to check the functionality of the fan switch. Disconnect the wires from the fan switch and test for continuity while operating the switch.
If there is no continuity or an inconsistent reading, the fan switch may be faulty and should be replaced.
- STEP 5- Verify Ground Connection:
Check the ground connection for the cooling fan system. Ensure the ground wire is securely connected and free from corrosion or damage. Clean or repair the ground connection as necessary.
You can also check the video instructions below to troubleshoot the radiator fan problem in your Brute Force 750:
5. Damaged or Corroded Connectors:
First, let me tell you the significance of connectors in your ATV’s electrical system and their role in ensuring smooth operation and proper functionality of various features.
Connectors are small components joining different wires within the ATV's wiring harness. They serve as crucial connection points, enabling the flow of electrical signals between various electrical components and systems.
When connectors are in good working condition, they facilitate the seamless operation of your ATV’s electrical system. However, if they become damaged or corroded, it can lead to a range of electrical problems that can be both frustrating and costly to resolve.
In the case of the Brute Force 750, 2 specific connectors called BUSS connectors are positioned on the wiring harness.
- One of these connectors is located on the front fender, situated between the front shock towers.
- The other connector can be found near the fuel tank, close to the rear fender. Due to their positioning, these connectors are exposed to moisture, dirt, and other contaminants over time, which can lead to corrosion.
Corroded or damaged connectors can cause a range of issues, including overheating of the engine due to a damaged fan, poor battery performance, blowing out of the fuse in the vehicle, stalling of the engine in activated 4WD mode, starting of the engine without an ignition key, failed sensor, and flashing of the check-light-belt in the vehicle.
Here are some common problems that users have experienced as a result:
- Electrical Malfunctions: Damaged connectors can cause electrical malfunctions, such as intermittent power loss, flickering lights, or inconsistent operation of various electrical components. This can include issues with the ignition system, lighting system, or accessories like winches or heated grips.
- Starting Problems: Corroded connectors can prevent a proper electrical connection between the battery and the starter motor. This can result in difficulties starting the ATV, including slow cranking or failure to start.
- Charging System Issues: Corroded connectors can impede the proper functioning of the charging system, leading to a drained battery or inadequate charging. This can cause recurring battery issues and a reduced overall electrical capacity.
- Sensor Failures: Damaged or corroded connectors can affect the communication between sensors and the ATV’s electronic control unit (ECU). This can result in inaccurate sensor readings, leading to poor engine performance, misfires, or abnormal fuel consumption.
How to Fix:
When you start experiencing electrical issues with your Brute Force 750, it is crucial to inspect these connectors. To do so, locate the rear wiring harness attached to the frame on the right side of the igniter/control unit area.
Check the connectors for signs of greenish corrosion beneath the connector cap, specifically within the metal contacts. If you observe corrosion, it is essential to take prompt action.
By addressing damaged or corroded connectors promptly, you can prevent further electrical problems and ensure the proper functioning of your Brute Force 750. In addition, regularly inspecting and maintaining these connectors will help keep your ATV’s electrical system in optimal condition.
6. Issue in Engaging the 4WD Mode:
The Kawasaki Brute Force 750 is a powerful ATV with two driving modes, including 2WD and 4WD modes. The 2WD mode is excellent for smooth terrains, while the 4WD mode is designed to perform on rough terrains.
However, some users have reported issues with switching to the 4WD mode, which can cause disturbance to the riders.
Specifically, it can be due to a damaged actuator that prevents you from getting 12 volts down to the actuator to put in 4WD. The actuator is a small device that controls the engagement and disengagement of the 4WD mode in the ATV. If it is damaged, you won't be able to switch to the 4WD mode.
Another reason for the problem is a blown fuse. This can happen due to a power surge or if the fuse is old and needs to be replaced. If the fuse is blown, you won’t be able to engage the 4WD mode.
Water and moisture intrusion on the electrical components can also cause problems switching to the 4WD mode.
In addition, water entering the electrical system can cause a short circuit, leading to components malfunctioning.
Refer to the following video guide to learn more about the actuator issue in Brute Force 750 in real-time:
How to Fix:
I recommend checking the working condition of the components like actuators, fuses, and bus connectors. Replace the worn-out actuator with a new one if it is the main culprit.
You can check its working by the flashing of light in both modes. If the light flashes, this indicates the presence of an actuator problem.
You can solve this issue by disconnecting the battery’s terminals for about 15 seconds. Then, reset and reconnect the actuator. This might help in resolving this issue for a temporary time being.
However, if you want to fix this issue permanently, replacing the actuator with a new one is better.
7. Oil Leakage Issue:
The oil leakage in the Brute Force 750 is a disastrous issue faced by the owners of this vehicle. It has been observed that this issue arises due to the faulty components in the oil chamber of the quad.
There are chances that debris and dirt can accumulate in the vehicle’s oil filters and fuel lining, which can cause oil leakage issues in the Brute Force 750.
How to Fix:
If you are experiencing an oil leak on your Brute Force 750, it can be due to the coolant chamber under the engine’s left rear. It is essential to address this issue promptly. Oil leakage can significantly impact the performance and reliability of your Kawasaki Brute Force 750.
An oil leak suggests a potential issue with the coolant chamber, which may require further investigation. To properly diagnose the problem, you may need to remove the timing chain cover. This step is essential to gain access and accurately assess the oil leak source.
A seal on the case side of this tube works by dividing the oil and coolant. The problem with the seal is the main culprit behind the oil leakage issue, so replacing the damaged seal with a new one is recommended to avoid this issue.
Don’t miss to watch the helpful video guide below to fix your ATV’s oil leakage issue:
8. Excess Noise Production:
Excess noise production is an annoying issue faced by the owners of Brute Force 750 but is a normal thing observed in off-roading vehicles.
In most cases, it has been observed that ATVs and UTVs make unusual and excessive noise on the off-roading terrains due to frequent use of vehicles.
The root cause of the vehicle can be the presence of a damaged clutch or loose flywheel in the vehicle, which cause the vehicle’s system to vibrate. This sudden vibration can produce extreme noise in the vehicle and can result in full failure of the vehicle.
How to Fix:
Inspect the working of the clutch and flywheel and replace them with new parts if worn out and damaged. You can also seek mechanical help in changing such components.
Here I will suggest some quick solutions which can help get rid of this unusual noise production issue:
- Fix 1: Rebuild or replace the whole engine, including the cylinders and top end, if it is damaged or corrupted.
- Fix 2: Inspect the oil filters and drain the old oil. Remove the clogged oil filters and check the condition of the brass filings that either they are in excellent working condition or not.
- Fix 3: Check the suspension status in your vehicle and inspect its components like shocks. Replace the corroded components with new ones and adjust them for better working.
- Fix 4: The imbalanced drivetrain can also cause issues of excess noise production in vehicles. It includes the presence of worn-out components like leaf springs and bearings. Imbalanced wheels can also produce excess noise in the vehicle. The only solution is the replacement of defective parts with new ones.
- Fix 5: If the entire frame of your vehicle is damaged, it is recommended to replace it with a new one to get rid of this unusual noise production in the vehicle.
Pros and Cons of Kawasaki Brute Force 750:
Despite its compact size, Kawasaki Brute Force 750 offers an excellent, fast-paced haul.
Kawasaki Brute Force 750 has a problematic 4WD mode in it.
The performance of this vehicle is divided into two modes, 2WD and 4WD, which provide feasibility to the rider.
The faulty flywheel in the vehicle creates excess noise in it.
This vehicle has a robust engine that is excellent for off-roading adventures.
This ATV sometimes performs not up to the mark on the rugged track.
This vehicle has the capability of uplifting heavy loads.
The vehicle shows starting issue in the cold temperature region.
This environment can work perfectly with environment-friendly technology.
The belt in this vehicle is slippery, which is due to poor sustenance in it.
This vehicle has an excellent fuel economy.
Kawasaki Brute Force 750 Users’ Feedback/Review:
“I’ve been riding my Kawasaki Brute Force 750 for over a year now, and I am thoroughly impressed with its performance. The powerful engine and smooth power delivery make it a beast on the trails. The suspension handles rough terrains with ease, providing a comfortable and controlled ride. The Brute Force 750 is a reliable and versatile ATV that never disappoints.”Source: kawieriders.com
“I recently upgraded to the Kawasaki Brute Force 750, and I couldn’t be happier with my decision. The build quality is exceptional, and the ATV feels solid and well-engineered. The power and torque from the 750cc engine are incredible, allowing me to tackle any obstacle with ease. The Brute Force 750 is a true workhorse that delivers outstanding performance on and off the trails.”Source: brutecentral.com
Overall, the Kawasaki Brute Force 750 users highly appreciate its performance, reliability, and versatility. In addition, they praise its powerful engine, smooth power delivery, and excellent handling on various terrains.
The Brute Force 750 has gained a positive reputation among ATV enthusiasts for its durability, ample storage space, and overall riding experience.
Kawasaki Brute Force 750 is a powerful and robust ATV with remarkable utility capabilities. However, it is prone to common problems that can significantly affect its performance.
By understanding these problems and adequately caring for your ATV, you can ensure that your Kawasaki Brute Force 750 remains in top-notch condition and serves you well for years. So, as a responsible ATV owner, address these issues promptly and enjoy the full potential of your Kawasaki Brute Force 750.
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Frequently Asked Questions (FAQs):
What are some common problems associated with the Kawasaki Brute Force 750?
Some of the common problems associated with the Kawasaki Brute Force 750 are related to the engine, suspension, transmission, belt issues, and brake issues.
What symptoms are shown by the fuel injection problems in Brute Force 750?
The symptoms shown by vehicles facing fuel injection problems are:
- Poor idling
- Failure in emissions and performance
- Increase fuel consumption
- Rough performance of the engine
What are the common problems associated with the fuel injection issue in Brute Force 750?
The common problems associated with the fuel injection issue in Brute Force 750 are:
- Stalling problems
- Struggle in accelerating
- Poor fuel economy and mileage
Can a bad fuel injector in the vehicle be responsible for damaging the engine of Brute Force 750?
Yes, in some cases, the bad fuel injector can damage the engine, which can be fixed after a major repair.
This is Surya. I am an experienced off-roader. I have been off-roading for many years across several terrains. I am passionate about 4×4 driving and want to share my knowledge and experience with others.
My goal is to provide you with the most comprehensive and unbiased information about off-roading.
I curated this article through my personal experience and expertise, and I hope it helps you with what you are looking for.