fits make: Yamaha.

( Brand: Moose Racing ), ( Manufacturer Part Number: 148358 ), ( Part Type: Intake Valve Spring )
The Moose Intake Valve-Spring Kit for the WR450F and YZ450F models, with part number 148358, is a high-performance upgrade specifically designed for Yamaha's renowned off-road motorcycles. This kit is crafted from top-quality steel, ensuring durability and reliability under the most demanding racing conditions.
The Moose Intake Valve-Spring Kit is engineered to provide improved valve function and performance. The steel springs are meticulously manufactured to offer optimal spring pressure, ensuring precise valve control and improved engine response. This results in enhanced power delivery, improved throttle response, and increased engine efficiency.
The kit is a direct replacement for the original OEM springs, making installation straightforward and hassle-free. Each spring is precision-manufactured to the exact specifications of the WR450F and YZ450F engines, ensuring a perfect fit and seamless integration into your motorcycle.
Moose Engineering is a well-known name in the off-road racing community, renowned for its high-quality performance parts. This Intake Valve-Spring Kit is no exception, offering racers and enthusiasts a reliable and effective way to enhance their WR450F or YZ450F's performance on the track or trail.
In summary, the Moose Intake Valve-Spring Kit (148358) is a premium upgrade for your WR450F or YZ450F. It is meticulously crafted from steel, offering improved valve function, power delivery, and throttle response. With straightforward installation and a direct OEM fit, this kit is an excellent choice for racers and enthusiasts seeking to unlock their motorcycle's full potential.
Pros of buying a WR450F-YZ450F Moose Intake Valve-Spring Kit:1. Improved Performance: The kit is designed to enhance the engine's performance by allowing more air and fuel to enter the combustion chamber. This can lead to increased horsepower and torque.
2. Durability: The steel springs used in the kit are known for their durability and ability to withstand high-revving engines, making them ideal for racing or high-performance use.
3. Easy Installation: The kit is designed to be easy to install, with clear instructions and no need for specialized tools.
Cons of buying a WR450F-YZ450F Moose Intake Valve-Spring Kit:1. Cost: The kit is not cheap, and the price may be a deterrent for some riders.
2. Potential Engine Damage: If not installed correctly, the kit could potentially cause engine damage. It is important to follow the instructions carefully and to have some mechanical knowledge before installing the kit.
3. Reduced Fuel Efficiency: The increased air and fuel intake may result in reduced fuel efficiency, which could lead to more frequent fuel stops or higher fuel costs.
Conclusion:If you are a serious off-road racer or a high-performance rider who wants to get the most out of your WR450F or YZ450F, the Moose Intake Valve-Spring Kit could be a worthwhile investment. However, it is important to weigh the potential benefits against the cost and the risk of potential engine damage if not installed correctly. If you are not confident in your mechanical skills, it may be worth paying a professional to install the kit for you.
Recommendation:If you decide to purchase the Moose Intake Valve-Spring Kit, make sure to read the instructions carefully and follow them closely to avoid any potential engine damage. It may also be worth investing in a high-quality tool set to ensure that you have all the necessary tools for the installation. If you are unsure about the installation process, consider hiring a professional to do it for you.
Includes valve seals.
Moose intake valve spring kit steel Yamaha wr450f yz450f stainless conversion includes only whats needed to convert your head the long-life black diamond valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also flow perform better than component skit forged one-piece valves, wound chrome-silicon heat-treated wire springs, ultra-light retainers hardened bases components created using finite element analysis. Software, as well proprietary camshaft analysis and spring design software to ensure consistent performance accurate designs specifically designed engineered for each application made in the USA note: this is a 3-valve kit.