fits model: It490. make: Yamaha. year: 1984.

( Brand: Wiseco ), ( Manufacturer Part Number: ORWI-CO425739-ON ), ( Part Type: Piston )
Introducing the Wiseco WIS-E425739-ON 87mm Performance Piston, an upgraded solution for your 1984 Yamaha IT490 Two-Stroke enduro motorcycle. This high-performance piston is meticulously engineered to deliver robust power, enhanced reliability, and improved engine efficiency.
Design and Construction:The WIS-E425739-ON piston is specifically designed and manufactured to reach optimal performance levels for the 1984 Yamaha IT490 engine. Its bore diameter measures exactly at 87mm, ensuring a perfect fit in your engine. The piston's lightweight design enhances the overall engine response and improves revability, while its durability ensures longevity under heavy usage. The top rings are specifically designed for two-stroke engines and designed to increase combustion efficiency and engine life.
Materials and Coating:The piston crown and skirt are constructed from Wiseco's proprietary alloys, which provide high strength and fatigue resistance to maintain engine performance under extreme conditions. The piston skirt utilizes Wiseco's renowned TCQ (Total Containment Quench) oil cooling system, ensuring optimum cooling and minimal heat transfer to the piston. This innovative coating design maximizes the piston's life span during sustained high-performance riding.
Moreover, the piston's top ring groove is nitrided, a process that significantly increases the ring's durability and reduces the chance of scuffing or scoring. The compressive rings are also made from high-quality materials and specifically designed to minimize friction and improve engine performance.
Performance and Power:The use of the Wiseco WIS-E425739-ON 87mm Performance Piston in the 1984 Yamaha IT490 enduro motorcycle will provide several notable performance benefits. This piston enhances the engine's power output by optimizing the combustion process for improved efficiency and delivering increased horsepower. Additionally, this high-performance piston allows for higher engine RPMs, resulting in smoother engine response and quicker acceleration. The piston's lightweight design also contributes significantly to the engine's overall balance and mass, leading to improved handling and agility.
Installation and Compatibility:Installing the Wiseco WIS-E425739-ON piston in your 1984 Yamaha IT490 motorcycle replacement engine is a straightforward process. Wiseco provides an installation guide to assist you with the procedure. It is important to ensure proper assembly techniques are used, and the piston is installed to the correct dimensions.
The piston is designed to be compatible with the stock connecting rod and crankshaft, making it an excellent choice for riders seeking reliable performance improvements without extensive engine modifications. To confirm compatibility, please consult your engine manual or contact Wiseco's technical support team.
In conclusion, the Wiseco WIS-E425739-ON 87mm Performance Piston for the 1984 Yamaha IT490 delivers significant power improvements, reliability, and efficiency to your enduro motorcycle. Its advanced design, durable construction, and innovative cooling system make it an ideal choice for riders who demand high-performance from their motorcycles. Upgrade your bike with the Wiseco WIS-E425739-ON piston today and take your enduro bike to new heights.
Buying a Wiseco WIS-E425739-ON 87mm piston for a 1984 Yamaha IT490 bike involves weighing several factors carefully to determine if it's a worthwhile investment. Here are the pros and cons:
Pros:1. Performance Enhancement: A high-performance piston like the Wiseco WIS-E425739-ON can significantly improve the power output of your engine by offering better compressions and improved heat dispersion. This can lead to increased horsepower and torque, resulting in improved acceleration and overall performance.
2. Durability: Wiseco pistons are known for their durability and strength. They are made from high-quality materials and undergo rigorous testing, allowing them to withstand the harsh conditions of high-performance riding. This means that, even with the increased power, you can expect a longer engine life.
3. Improved Efficiency: By optimizing the combustion process, a high-performance piston like the Wiseco WIS-E425739-ON can lead to improved efficiency. This can result in better fuel economy and reduced emissions, making your bike a greener choice.
4. Customization: Wiseco offers a range of custom pistons to suit different riding styles and engine configurations. This means that, depending on your specific requirements, you can choose a Wiseco piston that is tailored to your bike and riding style, ensuring optimal performance and compatibility.
Cons:1. Cost: High-performance pistons like the Wiseco WIS-E425739-ON can be quite expensive compared to stock pistons. However, it's essential to consider that the money spent on a performance piston can result in significant improvements in power output and engine life.
2. Installation Complexity: Installing a high-performance piston like the Wiseco WIS-E425739-ON can be a complex process that requires specialized tools and skills. It may be best to have a professional mechanic handle the installation to ensure that everything is done correctly and safely.
3. Risk of Engine Damage: Installing a high-performance piston without proper modifications or tuning can lead to engine damage. It's important to ensure that your engine is properly equipped to handle the increased power output that comes with a high-performance piston.
4. Potential for Noise: High-performance pistons can result in increased engine noise due to the improved combustion process. This noise may be unwelcome to some riders and can be a concern for those who live in noise-sensitive areas.
In conclusion, the Wiseco WIS-E425739-ON 87mm piston can offer several benefits for 1984 Yamaha IT490 bike owners, including improved performance, durability, efficiency, and customization. However, it also comes with some cons, such as cost, installation complexity, risk of engine damage, and potential for increased engine noise. Ultimately, the decision to buy a high-performance piston like the Wiseco WIS-E425739-ON depends on your specific requirements, budget, and riding style. If you can afford it and are committed to optimizing the performance of your bike, a high-performance piston like the Wiseco WIS-E425739-ON could be an excellent investment. However, if you are on a tight budget or prefer a quieter, more standard riding experience, it may be best to stick with a stock piston.
1984 Yamaha IT490 Dirt Bike Wiseco Piston 87mm: Compatibility: IT490, Size: 87mm. I need to exchange an item. Credit or Debit Card. Parts without fitment are to be assumed universal and may require vehicle modification.
Brand: Wiseco, model Number: ORWI-CO425739-ON. This is helpful if you are buying multiple items.