WISECO SK1251 Top End Kit Standard 70.50MM

( Brand: Wiseco ), ( Manufacturer Part Number: SK1251 ), ( Size: Standard Bore 70.50mm )

Review WISECO Top End Kit Standard Bore 70.50mm Yamaha fits 700 1997–2003

The WISCO SK1251 Top End Kit is a high-performance replacement part designed specifically for Yamaha 700 motorcycles manufactured between 1997 and 2003 with a 70.50mm bore size. This top end kit is an excellent choice for riders looking to enhance their engine's power and efficiency.

The WISCO SK1251 Top End Kit includes new pistons, rings, and cylinders. The pistons are made of forged aluminum, ensuring superior strength and durability. They are also designed to provide optimal compression and power output. The piston rings are precision-machined to ensure a perfect seal, reducing blow-by and improving combustion efficiency.

The cylinders in this kit are also made of high-quality materials, ensuring a precise fit and excellent heat dissipation. They are machined to provide a flat and smooth surface for the piston to slide on, reducing friction and wear. The cylinders also feature a unique design that helps to prevent detonation and improve engine performance.

The WISCO SK1251 Top End Kit is easy to install, with clear instructions provided to guide riders through the process. The kit also includes all necessary hardware, making it a complete solution for upgrading your Yamaha 700's top end.

Installing this top end kit can provide numerous benefits, including increased horsepower, improved torque, and enhanced engine efficiency. It can also help to reduce engine wear and improve overall engine performance, making it a worthwhile investment for any serious Yamaha 700 rider.

In summary, the WISCO SK1251 Top End Kit is a high-quality, reliable, and easy-to-install replacement part for Yamaha 700 motorcycles. It is designed to enhance engine performance, improve efficiency, and reduce wear, making it an excellent choice for riders looking to get the most out of their motorcycle.

The Wiseco SK1251 top end kit is a popular aftermarket option for Yamaha 700 motorcycles manufactured between 1997 and 2003. This kit offers several benefits and drawbacks that are essential to consider before making a purchase.

1. Enhanced Performance: The Wiseco top end kit includes high-performance pistons and cylinders that offer improved combustion efficiency, increased power output, and better throttle response.

2. Durability: The Wiseco pistons are known for their superior strength, which can help prolong engine life by reducing the likelihood of piston damage from excessive heat or pressure.

3. Improved Engine Appearance: The Wiseco top end kit comes with polished cylinders and pistons, which can give your engine a more visually appealing appearance.

4. Increased Compatibility: The kit is compatible with a wide range of aftermarket performance parts, allowing riders to further customize their motorcycle's engine.

1. Cost: The Wiseco top end kit can be quite expensive compared to stock OEM parts. This may be a significant consideration for budget-conscious riders.

2. Installation Complexity: Installing the Wiseco top end kit requires a high level of mechanical expertise, as it involves disassembling the engine and performing precise measurements and adjustments.

3. Potential for Engine Tuning: Installing the Wiseco top end kit may necessitate engine tuning to ensure optimal performance and prevent potential issues such as knocking or detonation.

The Wiseco SK1251 top end kit offers several advantages, including enhanced performance, durability, improved appearance, and increased compatibility. However, it comes with a higher cost, installation complexity, and potential need for engine tuning. If you are a serious performance enthusiast or a professional racer, the benefits may outweigh the drawbacks. For casual riders or those on a budget, the Wiseco top end kit may not be the best investment.

If you are an experienced mechanic or a serious performance enthusiast with a Yamaha 700 motorcycle from the 1997-2003 period, the Wiseco SK1251 top end kit can be an excellent upgrade to improve your bike's power output, durability, and appearance. However, if you are a casual rider or have limited mechanical expertise, it may be worth considering other less complex and costly upgrades for your Yamaha 700. Additionally, it's essential to ensure that you have the necessary skills and resources to install and tune the kit properly to avoid potential issues.

Details:

Durability, longevity and increased horsepower. Now you can own the same race parts as all top teams. Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance protection from micro-welding, galling, detonation. Wiseco offers a complete range of popular piston model's and years for both trail racing applications.

Contain all the necessary components for overbearing or rebuilding your top end. Cylinder sleeves must be purchased separately. 4-STROKE Racers CHOICE PISTONS: When blow-by starts to increase on other pistons and power fade, Wiseco Race Series parts continue sealing performing. WISECO PISTON PRICING: All Wiseco High-Performance Motorcycle Pistons are priced with rings and cir clips; see price list.

These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitrite-coated rings, which all add up to more power that is sustained longer. WISECO FEATURES PRO-LITE PISTONS: Innovative forging design and piston skirt provide maximum horsepower torque. Wiseco Top End Kit SK1251 Forged from high-silicon aluminum alloy for maximum strength and dependability. PK PISTON AND GASKET KITS: Feature forged pistons, rings, wrist pins, cir clips and top end gasket set.

part #: sk1251 price

• $591.99

specifications enginesnowmobile:

• for models: 700
• for makes: Yamaha
• for years: 1997-2003
• brand: Wiseco
• mpn: Sk1251
• size: Standard Bore 70.50mm

offer enginesnowmobile:

• best offers: True
• availability: In Stock
• started: April 23, 2025
• quantity: 2
• sold: 0
• options: Ship-to-home

payments enginesnowmobile:

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

seller enginesnowmobile:

• # reviews: 202461
• city: Centerburg, Ohio
• rating: 97.5%

returns enginesnowmobile:

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

shipping enginesnowmobile:

• type: Fixed
• cost: $0.00
• carrier: FedEx
• transit: 3-8 Days
• class: Standard
• service: FedEx Ground or FedEx Home Delivery

general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

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