The Yamaha Grizzly 700 is a well-loved ATV, admired for its toughness and reliability. However, it isn’t without its share of common problems. These issues can range from starting difficulties and overheating to engine noise and brake problems. Understanding these problems and their solutions will help you keep your Grizzly 700 running smoothly.
Many Yamaha Grizzly 700 owners encounter specific recurring issues. One common problem is the ATV’s tendency to overheat, especially under heavy use or in high-temperature environments. Another frequently reported issue involves starting troubles, often due to a faulty starter relay. Keeping an eye on these potential problems can save you time and frustration.
In addition to overheating and starting problems, other concerns such as spongy brakes, steering issues, and dirty air filters can also arise. Addressing these problems promptly and with the right solutions can extend the life of your Yamaha Grizzly 700.
Let us explore the issues in detail and find ways to fix it.
Engine Issues
Overheating Problems
The Yamaha Grizzly 700 often faces overheating issues, especially during prolonged use or in hot weather. Key contributors include low coolant levels and a malfunctioning radiator.
Regularly check the coolant and radiator for any leaks or clogging. Ensuring that the radiator fan is operational can also prevent overheating. If not addressed, you risk severe engine damage. You might also encounter engine stalling due to overheating.
Starting Issues
Starting problems are common, particularly in cold weather. This can be due to worn decompression springs or faulty spark plugs.
Inspect the spark plugs for wear and replace them if necessary. Ensuring the battery is in good condition and fully charged can also prevent starting issues. Some users have reported trouble with cold starts, linked to decompression springs.
Oil Consumption and Leaks
Excessive oil consumption and leaks can severely affect the engine’s performance. Always monitor the oil levels and top-up as required.
Leaky gaskets or seals are common culprits. You might notice oil spots under the ATV. Address leaks immediately to prevent engine damage and maintain effective lubrication.
Performance and Power
The Grizzly 700 sometimes suffers from poor acceleration and power loss. This could stem from issues with the fuel injection system or clogged air filters.
Ensure air filters are clean to avoid restricting airflow. Regularly servicing the fuel injection system can improve performance. Issues with the engine control unit (ECU) or low compression could also lead to poor engine performance.
Electrical Problems
Electrical issues often manifest as low voltage problems that can affect the engine’s operation. A faulty stator or battery can lead to insufficient power supply for various components such as the speed sensor or ECU.
Regularly check the battery and stator for functionality. Electrical problems may also result in stalling and overheating if the radiator fan is involved.
Engine Noise and Vibration
Noticeable engine noise and excessive vibration can indicate an underlying issue. This can range from loose components to malfunctioning parts within the engine.
The exhaust system, including the muffler, should be inspected for any damage or need for an extra muffler to dampen the noise. Engine mounts should also be checked to reduce vibrations and ensure a smooth ride. Regular maintenance can help keep these issues in check.
Structural and Mechanical Components
Steering and Suspension
Issues with the steering and suspension of the Grizzly 700 are often cited by riders. One common complaint involves the Electronic Power Steering (EPS). A malfunctioning EPS can lead to steering that feels unresponsive or overly sensitive, creating a potential hazard. Check for Power Steering Problems especially if you notice steering issues.
Tie rods and bushings also deserve attention. They are prone to wear and tear, leading to suspension problems. Regular inspection for signs of wear or damage can prevent sudden failures. The springs should be checked for their tension and integrity to ensure a smooth ride over rough terrain.
Drivetrain and Transmission
The drivetrain and transmission of the Grizzly 700 are critical for its performance. Transmission issues can manifest as difficulty in shifting gears or noticeable grinding sounds. Regular maintenance of the transmission fluid and checking for worn-out CV boots and axles is essential.
Bearings, particularly wheel bearings, often need replacement due to the harsh conditions the ATV operates in. Ensuring the CV shafts are in good condition helps maintain smooth power transfer from the engine to the wheels. Pay attention if the quad jolts during acceleration, which can signal drivetrain problems.
Frame and Support Assembly
The frame of the Grizzly 700 provides structural support for all other components. Cracks or bends in the frame can compromise the ATV’s overall build quality and performance. Regularly inspect for any signs of damage or corrosion, especially after rigorous off-road ventures.
The support assembly, including the subframe and mounting points, should also be checked. Ensuring bolts are tightened and the support structure is intact can prevent long-term issues. Immediate attention to any irregularities can prevent disastrous failures and prolong the life of your ATV.
Braking System
The braking system of the Yamaha Grizzly 700, particularly the rear brake, encounters several issues that owners need to be aware of. These complications can significantly impact the performance and safety of the ATV.
Rear Brake Complications
One of the common issues in the Grizzly 700’s braking system is a spongy rear brake pedal. This is typically caused by air trapped within the hydraulic lines. To rectify this, you need to bleed the brake system thoroughly, for which a vacuum bleeder tool can be quite effective.
Another reported issue involves the rear brake master cylinder not pumping DOT 4 fluid properly. Even when the master cylinder is new and filled with fluid, it might fail to function. This often indicates the need for a proper inspection and possibly replacing defective parts.
These brake complications, if not addressed timely, can impair the ATV’s stopping power. Ensuring your brakes are always in top condition is crucial for safe off-roading. Regular maintenance and prompt repairs are key to keeping your Yamaha Grizzly 700’s braking system reliable and efficient.
Cooling System
Radiator and Fluid Dynamics
One significant issue with the Yamaha Grizzly 700 is an overheating radiator. Dirt and debris can clog the radiator, reducing airflow and cooling efficiency. Regular cleaning is crucial to keep the radiator unobstructed.
Radiator fluid is another critical factor. Over time, coolant can become contaminated with dirt or degrade, reducing its effectiveness. Replacing it periodically helps maintain optimal cooling. Make sure to use the recommended type and mixture of coolant.
Installation of additional cooling components like aftermarket fans or inline coolers can also enhance the cooling capacity. These upgrades improve the circulation of coolant and help in managing engine temperature under extreme conditions.
Filtering System Failures
Air Intake Complications
The air filter on the Yamaha Grizzly 700 is prone to allowing dust and debris into the engine, especially in dry, dusty conditions. The design of the foam air filter and its positioning can sometimes let particles bypass the filter entirely.
Using filter grease can help create a better seal and reduce the risk of contaminants entering the engine. Ensuring that the air filter is properly maintained and replaced when necessary is essential. Regularly clean and oil the filter to minimize these issues.
If the air filter does not fit snugly, it may allow unfiltered air to enter, carrying harmful particles. This can lead to premature engine wear or serious damage. Pay special attention to the air filter’s condition to ensure optimal performance and longevity of your Yamaha Grizzly 700.
Electronics and Sensory Issues
Sensors and Readings
Faulty sensors can cause significant issues in your Yamaha Grizzly 700. Key sensors to monitor include the crankshaft position sensor and the speed sensor. The crankshaft position sensor detects the position and rotational speed of the crankshaft. If it malfunctions, the engine’s timing could be off, leading to poor performance or non-start conditions.
For speed readings, a faulty speed sensor can result in inaccurate speedometer readings or trigger the check engine light. Use a Volt/Ohm Meter to diagnose sensor issues by checking for appropriate signal output. Incorrect readings often mean the sensor needs replacement, especially if no normal signals are received from the sensors.
Battery and Power Management
The battery powers the electronics, and an unexpected power failure can disrupt the vehicle’s functioning. Common issues involve the battery running down quickly or not holding a charge.
Perform regular checks with a Volt/Ohm Meter to ensure the battery voltage remains within recommended limits. A high-quality battery charger can help maintain optimal charge levels.
To avoid power bleeds, check all electrical connections, ensuring they are tight and free of corrosion. If you encounter repeated electrical problems, inspecting the Engine Control Unit (ECU) for faults can prevent erratic engine behavior tied to power management issues.
For specialized diagnostics and repairs, using tools like the power bleeder can make the process more efficient by removing trapped air in hydraulic systems, ensuring better power efficiency and overall responsiveness.
Fuel System Defects
Fuel Pump and Injection
The fuel pump in a Yamaha Grizzly 700 can exhibit various problems that affect performance. A common issue is fuel pump failure, which may lead to the ATV not starting or running improperly.
Checking the fuel pump directly by hooking it to a 12V battery can help determine if the pump is faulty. Another frequent problem is related to fuel injection. Misfires or poor engine performance can often be linked to clogged or malfunctioning injectors, which impede the flow of fuel into the engine.
Gas and Combustion Chamber
Issues with the gas entering the combustion chamber can also be problematic. A faulty fuel injection system can result in uneven fuel distribution. This leads to misfires and poor engine performance.
Additionally, any blockages or restrictions in the fuel lines can prevent proper fuel delivery. Regular inspection of the combustion chamber for carbon buildup and cleanliness is essential. This ensures efficient ignition and prevents fuel-related malfunctions.
Gas Tank Design
The design of the gas tank, while generally robust, can sometimes be a source of problems. One specific area of concern is the gas tank rollover valve, which is crucial for maintaining proper ventilation and fuel flow.
If this valve fails or becomes clogged, it can disrupt the fuel system’s pressure, leading to starting issues or fuel starvation during operation. Keeping an eye on the gas tank’s integrity and ensuring the rollover valve is functional can help mitigate these issues effectively.
Reliability and Consumer Reports
The Yamaha Grizzly 700 has been a popular choice in the ATV community for years, but like any vehicle, it has its share of reliability issues and consumer feedback that potential buyers should consider. Here are some key insights into warranty coverage, long-term reliability, and any notable defects or recalls that have been reported.
Warranty and Dealer Support
Yamaha offers a robust warranty for the Grizzly 700, typically covering one year for most parts and labor. It’s essential to understand what the warranty includes and excludes. For high-cost repairs, Yamaha dealer support can be crucial, providing you with authorized service centers and certified technicians.
Dealer support often extends to regular maintenance and specific assembly issues. Owners generally find Yamaha’s customer service responsive, aiding significantly in addressing problems through the warranty period. It’s always beneficial to review your warranty details carefully and ask your dealer about any additional protection plans they offer.
Defect and Recall Information
Over the years, there have been specific recalls addressing critical safety concerns. For instance, there have been reports of the ATV tipping over on slopes due to its high center of gravity and narrow stance, posing a crash hazard.
There have also been issues with defective gas tank rollover valves and other engine-related problems. It is essential to stay updated on any recalls through Yamaha’s official channels or consumer safety boards.
Maintenance and Troubleshooting
Performing regular maintenance on your Yamaha Grizzly 700 can prevent common problems and ensure its longevity.
Preventative Maintenance Tips
To keep your Yamaha Grizzly 700 running smoothly, implement a consistent maintenance routine. Regularly check and change the engine oil, as failure to do so can lead to overheating and engine noise. Clean the air filter frequently and ensure there is no accumulation of dust and dirt, which can impede performance.
Monitor the battery condition and maintain it properly to avoid starting problems. It’s also crucial to check the suspension and tire pressure to mitigate stability issues, especially on rough terrains. Tighten any loose bolts using the appropriate tools such as an Allen Phillips screwdriver. Adhering to the manufacturer’s manual will guide you through these steps methodically.
Diagnosing Common Issues
Identifying symptoms early can prevent more significant issues. A common starting problem in your Yamaha Grizzly 700 may be due to a faulty starter relay. If the engine fails to crank even with a charged battery, this component may need replacement.
Noisy engines or overheating can indicate low oil levels or clogged air filters. Likewise, if the quad smokes on startup, inspect for worn valves or piston rings. Backfiring then dying could suggest an issue with the gas tank’s rollover valve.
Use a systematic approach to diagnosis, starting with the simplest fixes, such as checking fluid levels and the condition of electrical components, to identify the root cause efficiently.
Troubleshooting Techniques
Effective troubleshooting requires a precise approach. For starting issues, ensure the battery is fully charged and in good condition. If problems persist, test the starter relay and inspect wiring connections for corrosion or damage.
Handle decompression problems by examining the decompression springs. Replace any broken springs to restore proper functionality. When dealing with engine backfires, inspect the gas tank rollover valve and replace it if malfunctioning.
Using a methodical process to address each potential issue helps isolate and correct problems. Regularly consulting the manual can provide additional troubleshooting procedures tailored to your specific model.
Cost Considerations
The Yamaha Grizzly 700 offers a balance between performance and cost. This section breaks down important aspects such as the initial purchase price, ongoing operating and maintenance expenses, and the availability and cost of replacement parts.
Initial Purchase and Price Value
Purchasing a Yamaha Grizzly 700 can vary significantly based on the model year and package options. Prices range from around $8,199 to $10,099. Newer models with advanced features tend to cost more but offer enhanced performance and reliability.
Considering the Grizzly 700’s power, durability, and versatility, its initial price provides substantial value. Buyers should also take into account dealership promotions or financing options that may lower the upfront expense.
Operating and Maintenance Costs
Operating a Yamaha Grizzly 700 involves regular expenses such as fuel, oil changes, and periodic maintenance. These ATVs are generally fuel-efficient, but the precise fuel consumption can depend on the intensity and type of use.
Routine maintenance is crucial to avoid costly repairs. Regular tasks include changing the oil, checking the brakes, and inspecting the suspension. It’s recommended to follow Yamaha’s maintenance schedule to ensure optimal performance and extend the vehicle’s lifespan.
Replacement and Parts Availability
Parts availability and cost are critical considerations for long-term ownership. Yamaha’s wide distribution network ensures that most replacement parts for the Grizzly 700 are readily available and reasonably priced.
Common parts that may need replacement include tires, brake pads, and filters. Availability of parts through authorized dealers helps minimize downtime and maintain the ATV in top condition.
For some parts, aftermarket options may offer cost savings without compromising quality. Always verify compatibility before purchasing non-OEM parts to avoid installation issues.
Aftermarket Accessories and Customization
Customizing your Yamaha Grizzly 700 can not only enhance its performance but also improve its style and personalization. From exhaust modifications that change the sound and efficiency of your ATV to performance parts that boost power, there are numerous ways to make your ride uniquely yours.
Custom Exhaust and Sound Modifications
Upgrading your Yamaha Grizzly 700’s exhaust system is a popular customization. Many riders opt for aftermarket exhaust systems to improve the ATV’s sound profile and increase performance. Options like slip-on exhausts are easier to install and provide a moderate boost in power. Full exhaust systems offer the most significant performance gains but require more comprehensive installation.
Benefits of Custom Exhausts:
- Improved performance and horsepower
- Enhanced sound quality
- Possible weight reduction with lighter materials
Brands like HMF and FMF are often recommended for their reliable products that cater specifically to Grizzlys.
Enhanced Performance Parts
For those looking to boost the performance of their Yamaha Grizzly 700, various aftermarket parts are available. High-performance air filters can improve airflow to the engine, leading to better combustion and more power. Upgrading the suspension with stronger shocks can make your ATV handle better on rough terrain.
Key Performance Upgrades:
- Air filters for better engine efficiency
- Suspension kits for improved handling
- ECU tuners to optimize engine performance
Companies like K&N and Fox offer specialized parts that can significantly enhance the performance of your Grizzly 700.
Aesthetic Upgrades and Personalization
Personalizing your Yamaha Grizzly 700 is another exciting aspect of customization. Adding new graphics, custom paint jobs, and LED light bars can give your ATV a unique look. Many riders also add winches and protective gear to enhance both style and functionality.
Popular Aesthetic Modifications:
- Custom graphics kits for personalization
- LED light bars for added visibility and style
- Winches and bumpers for practical enhancements
With these upgrades, you can truly make your Grizzly stand out both in appearance and function. Brands like ProArmour and Battle Born are known for their high-quality customization products.
By exploring these aftermarket accessories and modifications, you can optimize your Yamaha Grizzly 700 to suit your specific needs and preferences.