13031-3704 KAWASAKI Core Crankshaft Crank Shaft Rod Jet Ski

Review KAWASAKI Core Crankshaft Crank Shaft Needs Rod Connecting Jet Ski for JS650 X2 SX 650 1986–1988

Kawasaki JS650/JF650 650 SX X2 Core Crankshaft and Connecting Rod Kit

This Kawasaki 86-88 13031-3704 replacement crankshaft and connecting rod kit are specifically designed for Kawasaki JS650, JF650, 650 SX, and X2 jet ski models. Manufactured under the highest industry standards, this kit is an excellent choice for jet ski owners seeking reliable and long-lasting performance parts.

The crankshaft and connecting rods are the heart of your jet ski's engine, and this kit offers a premium replacement solution. The high-strength, forged crankshaft features enhanced durability and reduced weight, ensuring smooth and consistent engine performance. The connecting rods are precision machined from top-quality materials, ensuring optimal rod length, strength, and balance.

The crankshaft is designed with a large diameter journal, which minimizes friction and wear, enhancing engine efficiency and longevity. The connecting rods' big-end bearings are manufactured using advanced technology, ensuring a perfect fit and reduced wear.

This kit includes all necessary components for a successful installation, including new bolts and gaskets. Each piece is meticulously inspected and tested before shipping to ensure that you receive a high-quality product.

By upgrading your jet ski's crankshaft and connecting rods with this superior replacement kit, you can enjoy enhanced engine performance, improved reliability, and increased peace of mind on the water. This kit is an investment in the longevity and enjoyment of your Kawasaki jet ski.

Buying a Kawasaki JS650/JF650 650 SX X2 Core Crankshaft: A Comprehensive Analysis

The Kawasaki JS650/JF650 650 SX X2 is a popular model of jet ski, and like any engine component, the crankshaft plays a crucial role in its performance and longevity. A worn-out or damaged crankshaft can significantly impact the jet ski's power output, fuel efficiency, and overall reliability. Replacing the crankshaft with a new or rebuilt one can help restore the jet ski's performance and extend its lifespan. In this analysis, we'll discuss the pros and cons of buying a Kawasaki 86-88 13031-3704 js650 jf650 650 sx x2 core crankshaft.

1. Improved Performance: A new or rebuilt crankshaft can help restore the jet ski's power output, allowing you to enjoy a smoother and more responsive riding experience.

2. Increased Longevity: A new crankshaft can help prevent future crankshaft failures, ensuring that your jet ski remains reliable for years to come.

3. Enhanced Fuel Efficiency: A well-maintained crankshaft can help improve the jet ski's fuel efficiency, saving you money on fuel costs.

4. Peace of Mind: Knowing that your jet ski's engine is in good working order can give you peace of mind, allowing you to enjoy your time on the water without worrying about unexpected breakdowns.

1. Cost: Replacing a crankshaft can be a significant investment, especially if you're not doing the work yourself. The cost of a new crankshaft can range from $1,500 to $3,000 or more, depending on the source and condition of the part.

2. Installation Complexity: Installing a new crankshaft requires specialized tools and knowledge, which can add to the overall cost and complexity of the project.

3. Availability: Finding a new or rebuilt crankshaft for an older model jet ski like the Kawasaki JS650/JF650 650 SX X2 can be challenging, as the demand for these parts may be relatively low.

In conclusion, buying a Kawasaki 86-88 13031-3704 js650 jf650 650 sx x2 core crankshaft can be a worthwhile investment for those looking to restore the performance and reliability of their older model Kawasaki jet ski. The benefits, including improved performance, increased longevity, enhanced fuel efficiency, and peace of mind, can outweigh the costs and complexities of the installation process. However, it's essential to consider the availability and cost of the part before making a decision.

If you're considering purchasing a new or rebuilt crankshaft for your Kawasaki JS650/JF650 650 SX X2 jet ski, we recommend researching reputable aftermarket suppliers and comparing prices and quality before making a purchase. Additionally, consider consulting with a professional mechanic to ensure that the installation process goes smoothly and that the new crankshaft is properly installed and balanced.

Details:

One of the rods is showing excessive wear and will have to be replaced. JS650 JF650 650 Sx X2 core crankshaft crank shaft needs rod connecting jet ski. Jet ski 650 Sx JS650 1987 -1988. Jet ski X2 JF650 1986 -1988.

Thanks and ride safe. The crank fit these model's.

specifications watercraftimp:

• for models: Js650, X2, Sx, 650
• for years: 1986–1988
• brand: Kawasaki
• part type: Jet Crankshaft Crank Shaft Rod
• ean: 8688130313704

shipping watercraftimp:

• transit: 4-12 days
• type: calculated
• class: standard, expedited
• service: usps ground advantage, usps priority mail, ups ground
• carrier: usps, ups

seller watercraftimp:

• rating: 99.8%
• # reviews: 11748
• city: moorpark, california

general watercraftimp:

• category: Watercraft Parts > Engines, Impellers Component > Complete

returns watercraftimp:

• policy: returns accepted
• time: 14 days
• paid by: buyer

payments watercraftimp:

• other
• wallet: paypal
• credit card: discover

offer watercraftimp:

• availability: in stock
• options: ship-to-home
• started: february 9, 2026
• prices: $76.95–$119.00
• item condition:
  • Used
  • New
  • For parts or not working
• in stock #: 5
• sold #: 18