The Yamaha YFZ450R SE is a high-performance sport ATV that is designed to deliver thrilling off-road experiences. With its powerful engine, advanced features, and aggressive styling, this ATV is built to dominate the trails and tracks. Whether you’re a seasoned rider or a beginner looking for an adrenaline rush, the Yamaha YFZ450R SE is sure to impress.
Technical Specifications
| Category | Specification |
|---|---|
| Engine Type | 449cc liquid-cooled, 4-stroke, DOHC |
| Bore x Stroke | 95.0mm x 63.4mm |
| Compression Ratio | 11.8:1 |
| Fuel Delivery | Fuel Injection (FI) |
| Ignition | TCI: Transistor Controlled Ignition |
| Starting System | Electric |
| Transmission | 5-speed manual clutch |
| Final Drive | O-ring chain |
Engine Specs
| Specification | Value |
|---|---|
| Displacement | 449cc |
| Engine Layout | Single cylinder |
| Cooling System | Liquid-cooled |
| Valvetrain | DOHC |
| Fuel System | Fuel Injection (FI) |
| Starting System | Electric |
Speed Specs
| Specification | Value |
|---|---|
| Maximum Speed | 85 mph (137 km/h) |
| Acceleration (0-60 mph) | 4.5 seconds |
| Top Speed | 85 mph (137 km/h) |
Wheel Specs & Bolt Pattern
When it comes to the Yamaha YFZ450R SE, the wheel specs and bolt pattern play a crucial role in ensuring optimal performance and handling. Here are the key details you need to know:
| Specification | Value |
|---|---|
| Front Wheel Size | 21 x 7-10 |
| Rear Wheel Size | 20 x 10-9 |
| Wheel Type | Aluminum |
| Bolt Pattern | 4/156 |
The Yamaha YFZ450R SE features lightweight aluminum wheels that not only enhance the overall aesthetics but also contribute to improved maneuverability. The front wheel size measures 21 x 7-10, while the rear wheel size is 20 x 10-9. These dimensions strike a perfect balance between stability and agility, allowing riders to tackle various terrains with confidence.
In terms of the bolt pattern, the Yamaha YFZ450R SE utilizes a 4/156 configuration. This bolt pattern ensures compatibility with a wide range of aftermarket wheels, giving riders the flexibility to customize their ATV according to their preferences.
Weight
Weight is a crucial factor to consider when evaluating an ATV’s performance and handling capabilities. The Yamaha YFZ450R SE strikes a balance between durability and agility by maintaining an optimal weight. Here are the weight specifications for this sport ATV:
- Dry Weight: 405 lbs (183.7 kg)
- Curb Weight: 422 lbs (191.4 kg)
The dry weight refers to the weight of the ATV without any fluids, while the curb weight includes all necessary fluids such as fuel and oil. With its lightweight construction, the Yamaha YFZ450R SE offers excellent power-to-weight ratio, allowing riders to experience quick acceleration and nimble handling on various terrains.
Oil Specs
Proper lubrication is vital for maintaining the longevity and performance of the Yamaha YFZ450R SE’s engine. Here are the oil specifications for this ATV:
| Specification | Value |
|---|---|
| Engine Oil Capacity (with filter) | 1.59 quarts (1.5 liters) |
| Recommended Oil Type | 10W-40 or 20W-50 |
| Oil Change Interval | Every 20 hours or as recommended by the manufacturer |
It is essential to regularly check the engine oil level and ensure that it is within the recommended range. Using the recommended oil type and adhering to the specified oil change interval will help maintain optimal engine performance and prolong the life of the Yamaha YFZ450R SE.
Overall, the Yamaha YFZ450R SE’s wheel specs, bolt pattern, weight, and oil specifications are carefully designed to enhance performance, handling, and durability. Whether you’re hitting the trails or competing on the track, these specifications contribute to an exhilarating riding experience.
Common Problems and Review
1. Electrical Issues
One common problem reported by some Yamaha YFZ450R SE owners is electrical issues. These can range from faulty wiring connections to issues with the ignition system. It is recommended to regularly inspect the electrical components and wiring harness for any signs of damage or loose connections. If any issues are detected, it is advisable to consult a professional technician for proper diagnosis and repair.
2. Suspension Setup
Another area where some riders have encountered challenges is with the suspension setup of the Yamaha YFZ450R SE. The stock suspension may not be perfectly suited for every rider’s preferences and riding style. It is recommended to experiment with different suspension settings and adjustments to find the optimal setup that provides the desired level of comfort and performance. Additionally, upgrading to aftermarket suspension components can further enhance the ATV’s handling capabilities.
3. Fueling and Carburetion
Some riders have reported issues related to fueling and carburetion on the Yamaha YFZ450R SE. This can include difficulties with starting the ATV, poor fuel efficiency, or inconsistent power delivery. It is important to ensure that the carburetor is properly tuned and the fuel system is clean and free from any debris. Regular maintenance, such as cleaning or replacing the air filter and fuel filter, can help prevent fueling issues. If problems persist, seeking professional assistance is recommended.
Review
Overall, the Yamaha YFZ450R SE is highly regarded as a top-performing sport ATV. Its powerful engine, responsive handling, and aggressive design make it a favorite among off-road enthusiasts. The ATV’s lightweight construction and advanced suspension system contribute to excellent maneuverability and control on various terrains.
Riders appreciate the Yamaha YFZ450R SE’s impressive acceleration and top speed, allowing them to conquer challenging trails and tracks with ease. The ATV’s responsive throttle and smooth power delivery provide an exhilarating riding experience.
The build quality and durability of the Yamaha YFZ450R SE are also highly praised. The ATV is designed to withstand the rigors of off-road riding, and many riders have reported minimal issues with mechanical reliability.
However, it is important to note that individual experiences may vary, and some riders have encountered specific problems such as electrical issues, suspension setup challenges, or fueling and carburetion issues. These problems can be addressed through proper maintenance, regular inspections, and seeking professional assistance when needed.