fits model: Yz125. make: Yamaha. year: 1976–2020.

( Brand: Wiseco ), ( Manufacturer Part Number: 390P2 ), ( Part Type: Ring Piston )
Introducing the Wiseco 390P2 piston rings, an essential upgrade for 1976-1982 Yamaha YZ125 bikes seeking improved performance and durability. These high-performance piston rings are designed to deliver enhanced sealing, strength, and compression, making them the top choice for serious off-road riders and enthusiasts.
Crafted from a proprietary alloy with an optimized ring design, Wiseco 390P2 piston rings provide unmatched sealing ability against the cylinder bore. The rings' outer walls conform closely to the cylinder wall, reducing blow-by and compressing the ring grooves for a more efficient transfer of combustion gases. This significant reduction in gas leakage results in improved engine efficiency and more power at the rear wheel.
The rings' superior strength and reliable design come from an advanced manufacturing process that allows for increased ring tension and an accurate ring end gap. This results in a longer ring life, as the rings are capable of withstanding the rigors of high-performance riding and racing conditions.
The Wiseco 390P2 piston rings offer several other benefits for 1976-1982 Yamaha YZ125 enthusiasts. These include:1. Reduced engine wear: The enhanced sealing ability of the piston rings significantly reduces engine wear, leading to improved engine longevity.
2. Improved engine responsiveness: By reducing blow-by and optimizing combustion efficiency, the Wiseco 390P2 piston rings enable a quicker response from your engine, resulting in better acceleration and overall performance.
3. Superior heat transfer: Wiseco 390P2 piston rings boast excellent heat transfer characteristics, ensuring the engine stays cooler under heavy use.
4. Enhanced compression: These piston rings allow for a tighter piston-to-cylinder clearance, providing better compression and improving overall engine output.
Weight: Approximately 0.8 oz. (23 grams) per set
Sizes: Comes as a set: 2 outer, 1 inner, and 1 oil control ring
By upgrading to Wiseco 390P2 piston rings for your 1976-1982 Yamaha YZ125, you'll experience a more efficient, durable, and powerful engine, elevating your riding experience to new heights.
Wiseco 390P2 piston rings for the 1976-1982 Yamaha YZ125 are aftermarket performance parts designed to provide better ring sealing and longer ring life compared to the OEM rings. While upgrading to these piston rings can offer several benefits, it's essential to consider the potential pros and cons before making a purchase.
Pros:1. Enhanced Performance: Aftermarket piston rings can improve engine performance by providing a tighter piston-to-cylinder seal, which can reduce power loss caused by excessive ring gaps or blowby.
2. Durability: Wiseco piston rings are made of high-quality materials, such as scratch-resistant steel or iron, ensuring longer ring life and durability compared to OEM rings.
3. Improved Combustion Efficiency: Tighter piston-to-cylinder seals allow for a more efficient combustion process, resulting in increased horsepower, torque, and overall engine performance.
Cons:1. Cost: Aftermarket piston rings are generally more expensive than stock rings. Upgrading to Wiseco 390P2 piston rings for a Yamaha YZ125 can be a significant investment.
2. Installation Complexity: Installing aftermarket piston rings can be more challenging than installing OEM rings, as it may require specialized tools and additional skills.
3. Risk of Damage: Improper installation or use of incorrect ring sizes can result in engine damage and potential engine failure.
Conclusion:Deciding to purchase Wiseco 390P2 piston rings for a 1976-1982 Yamaha YZ125 ultimately depends on the rider's goals, budget, and level of mechanical expertise. These aftermarket piston rings offer improved performance, durability, and combustion efficiency, making them an attractive option for those seeking to optimize their engine's output. However, the installation complexity, cost, and potential risk of damage are important considerations to weigh before making a purchase.
Recommendation:If you are a casual rider or new to motorcycle maintenance, it might be best to stick with the OEM piston rings. However, if you're an enthusiast or a competitive rider, the benefits of the Wiseco 390P2 piston rings may be worth the investment, especially if you have the necessary skills and resources to install them properly. Always consult your mechanic or a professional for installation and ensure you have all the required tools and equipment before proceeding with the upgrade.
Help you out. There is no pin, clips or bearing included. This is a .20 oversize Wiseco piston rings for 1976-1982 Yamaha YZ125. Wiseco part number 390P2.
The domestic shipping price listed is for the lower 48 states only. It will fit the following model's.