WISECO 546M08850 Piston Kit 1.50MM 88.50MM

( Brand: Wiseco ), ( Manufacturer Part Number: 546M08850 ), ( Part Type: Piston ), ( Manufacturer Warranty: 1 Year ), ( Size: 1.50mm Oversize To 88.50mm )

Review WISECO Yamaha 1984 90 1992 93 Piston Kit 1.50mm 88.50mm fits YZ490 WR500 1984-90–1992-93

Introducing the WiseCo 546M08850 piston kit, an essential upgrade for the Yamaha YZ490, WR500 models produced between 1984 and 1990, and 1992 to 1993. This high-performance piston kit is designed to enhance your motorcycle's power output and overall engine performance.

The WiseCo piston kit includes two pistons, specifically engineered for a 1.50mm overbore and an 88.50mm bore diameter. Each piston is crafted from forged aluminum alloy, ensuring superior strength and durability. The piston crown is designed with a dish shape, which optimizes combustion chamber volume for improved power and torque.

The piston skirts feature a full-floating design, which minimizes friction between the piston and cylinder wall, reducing wear and tear and ensuring smooth operation. Additionally, each piston comes with a ring pack that includes compression rings, oil control rings, and a top ring. These rings are designed to provide optimal sealing and engine performance.

This piston kit is an excellent choice for riders seeking to increase their motorcycle's power output while ensuring reliable and long-lasting performance. The WiseCo 546M08850 piston kit is easy to install with step-by-step instructions included, making it a popular choice among enthusiasts and mechanics.

Upgrading to the WiseCo 546M08850 piston kit not only enhances the performance of your Yamaha YZ490 or WR500, but it also provides peace of mind, knowing that you have invested in high-quality components that will stand the test of time.

In conclusion, the WiseCo 546M08850 piston kit is a must-have upgrade for Yamaha YZ490 and WR500 owners looking to boost their motorcycle's power output, improve engine performance, and ensure reliable and long-lasting operation. With its forged aluminum alloy construction, optimized piston crown design, and full-floating piston skirts, this piston kit is the perfect choice for riders seeking to get the most out of their motorcycle.

WiseCO 546M08850 Piston Kit for Yamaha YZ490 and WR500: A Detailed Analysis

The WiseCO 546M08850 piston kit is designed for Yamaha YZ490 motorcycles manufactured between 1984 and 1990 and for WR500 models from 1992 to 1993. This piston kit offers a 1.50mm increase in piston size to improve engine performance. Let's examine the potential advantages and disadvantages of investing in this piston kit.

1. Enhanced Engine Performance: The primary benefit of this piston kit is the potential improvement in engine performance. The increased piston size allows for more fuel and air to be burned, resulting in increased power and torque.

2. Durability: WiseCO is a reputable manufacturer known for producing high-quality aftermarket components. This piston kit is likely to be robust and long-lasting, providing excellent value for the investment.

3. Customization: Upgrading to a larger piston kit allows riders to tailor their motorcycle to their specific riding style and preferences. This can lead to a more enjoyable riding experience.

1. Complex Installation: Installing a piston kit is a complex process that requires specialized tools and knowledge. It is not a job for the casual mechanic and may require professional assistance.

2. Cost: The cost of the WiseCO 546M08850 piston kit is relatively high compared to some aftermarket components. Riders must weigh the potential performance benefits against the cost.

3. Risk of Damage: Installing a larger piston kit increases the risk of engine damage if not done correctly. This can lead to expensive repairs or even an unrepaired engine.

The WiseCO 546M08850 piston kit offers several advantages, including enhanced engine performance, durability, and customization. However, it also comes with some disadvantages, such as complex installation, cost, and the risk of engine damage. Ultimately, the decision to purchase this piston kit depends on the rider's individual preferences, budget, and mechanical expertise.

If you are an experienced mechanic with a strong understanding of engine performance and a substantial budget, the WiseCO 546M08850 piston kit may be an excellent investment for your Yamaha YZ490 or WR500. However, if you are a casual rider with limited mechanical knowledge or a tight budget, it may be wiser to consider other aftermarket upgrades or wait until you have more experience and resources before investing in a piston kit.

Details:

2-Stroke Pro-Lite Pistons: 1984 1992 . We pledge to use our best efforts make your experience both beneficial and enjoyable. Computer engineered piston skirt profiles provide minimal cylinder wall friction. These kits offer lightweight forging for instant throttle response and maximum torque.

Racers Choice: Pistons are single-ring 2-Stroke or two ring 4-Stroke; Reduced weight and friction with increased power throttle response; Service intervals may be over conventional Wiseco. How do we stay small and sell big. Anti-detonation grooves and ring land diameter eliminates blow-by while maximizing engine performance. Buyer pays fixed shipping costs.

Its simple: years of experience.

part #: 546m08850 prices

• $219.99-$243.95

specifications pistondon:

• for models: Yz490, Wr500
• for makes: Yamaha
• for years: 1984-90-1992-93
• brand: Wiseco
• mpn: 546m08850
• part type: Piston
• manufacturer warranty: 1 Year
• size: 1.50mm Oversize To 88.50mm

offer pistondon:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: August 22, 2025

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New

payments pistondon:

• credit card: Discover
• other
• wallet: Apple-pay

seller pistondon:

• city: Miamisburg, Ohio
• # reviews: 46392
• rating: 99.9%

returns pistondon:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

shipping pistondon:

• type: Fixed
• class: Standard
• transit: 4-7 Days
• service: UPS Ground
• carrier: UPS
• cost: $0.00

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