fits model: Kx125, Kx, 125. make: Kawasaki. year: 1990.

( Brand: Wiseco ), ( Manufacturer Part Number: 589PS ), ( Part Type: Piston )
The Wiseco 589PS 1164-28 piston is a high-performance aftermarket piston engineered for the 1990 Kawasaki KX125 and KX250 motocross bikes. This piston, with part number 589M05600, is a direct replacement for the stock piston and aimed at riders who are seeking improved power, reliability, and overall engine performance.
Design and Construction:The Wiseco 589PS 1164-28 piston is manufactured using Wiseco's renowned forged piston technology. With a forged construction, the piston offers enhanced durability and strength, allowing for increased power and linear power delivery. In the design process, the attention was paid to reducing reciprocating weight, improving cooling and reducing friction, leading to a more efficient power delivery across the entire RPM range.
Key Features:1. Increased Power: The Wiseco piston is designed to work more efficiently with aftermarket high-performance camshafts and ported cylinders, allowing for improved engine power output and torque increase.
2. Improved Ring Life: The piston design features a full-diameter oil control groove and oil squirter holes that provide more consistent oil distribution and reduce oil consumption in the engine. This results in extended ring life and reduced fouling.
3. Enhanced Heat Transfer: The piston crown is designed with mechanical pressure-fed oil cooling which provides improved heat transfer, reducing the engine's core temperature and increasing the engine's reliability.
4. Compatibility: The 589PS 1164-28 piston is a direct replacement for the stock piston, compatible with the 1990 Kawasaki KX125 and KX250 engines, providing a hassle-free installation process for riders.
5.ITH Process: The piston undergoes Wiseco's Intensive Thermal Heat Treatment (ITH) process. This specialized process ensures that each piston undergoes a higher level of heat treatment than standard pistons, leading to a stronger material and improved durability.
6. Engineered for British Monobloc Engines: The 589PS 1164-28 piston is engineered specifically for engines such as Burlen Fulvio, Britten, Matchless and Triumph, making it a versatile option for those working on classic motocross bikes.
Conclusion:The Wiseco 589PS 1164-28 piston is an essential upgrade for any 1990 Kawasaki KX125 or KX250 rider seeking improved power, reliability, and overall engine performance. With its forged construction, enhanced cooling, and oil distribution, the Wiseco 589PS 1164-28 piston sets your classic motocross engine up for countless hours on the track or trail while ensuring durability and strength.
The decision to invest in a performance piston, such as the Wiseco 589PS 1164-28 for a 1990 Kawasaki KX125, requires careful consideration of its potential benefits and drawbacks. In this analysis, we will weigh the pros and cons to help determine if upgrading your engine component with this piston is worthwhile.
II. Pros1. Enhanced Power and Torque: A high-performance aftermarket piston like the Wiseco 589PS is specifically designed to deliver increased power and torque, leading to improved acceleration and overall performance of your KX125.
2. Durability and Longevity: Wiseco pistons are known for their heat resistance, minimizing the risk of thermal expansion and damage under extreme racing conditions. This increased durability can save you money by reducing the frequency of engine replacements.
3. Customization and Engine Tuning: The Wiseco 589PS piston offers the opportunity to customize your engine setup based on your racing requirements, allowing a more efficient combustion process and fine-tuning for competitive edge.
III. Cons1. Cost: High-performance aftermarket pistons are typically more expensive than stock components. This investment might be a concern for riders who seek a budget-friendly option.
2. Installation Complexity: Installing the Wiseco 589PS piston may require additional labor costs, as it is a non-trivial process that necessitates specialized motorcycle repair skills and expertise.
3. Potential Clearance Issues: Careful consideration is needed when selecting the correct piston size, as a misfit can cause issues like contact with engine components, leading to additional costs and maintenance headaches.
IV. ConclusionThe Wiseco 589PS 1164-28 piston for the 1990 Kawasaki KX125 offers significant power gains, improved durability, and customization opportunities. However, it comes with increased costs, potential installation challenges, and the responsibility of precise sizing.
Recommendation:If your primary goal is to extract maximum performance from your 1990 KX125 and you are willing to invest in labor and the upfront cost, the Wiseco 589PS piston could be an excellent upgrade for your motorcycle. However, if you are working on a budget, weigh the benefits against the projected costs carefully to determine if this is the ideal choice for your specific circumstances.
1990 KAWASAKI KX125 KX 125 PISTON WISECO 589PS 589M056 NEW OLD STOCK NOS.