KAWASAKI Carburetor Jetski Jet Ski Manifold Mikuni 38

( Manufacturer Part Number: JS55 ), ( Part Type: Jet Carburetor Manifold )

Review KAWASAKI Carburetor Jetski Jet Ski Manifold Oem Mikuni 38 fits JS550 JS 550 440

Introducing the Kawasaki JS55/JS550 Carburetor, a vital component for the optimal performance of your Kawasaki Jet Ski or Jet Jet model with a 550 440 engine. This carburetor, manufactured by Mikuni, is a 38mm flat slide type, designed to deliver precise fuel-air mixtures for an efficient combustion process.

The Mikuni JS55/JS550 Carburetor is known for its advanced features, including a venturi shape that ensures a consistent and smooth airflow. Its flat slide design allows for a more responsive throttle action, enhancing the overall riding experience. The carburetor is also equipped with an automatic pilot jet, which maintains a constant fuel flow during idle conditions, ensuring a stable engine idle.

The Mikuni JS55/JS550 Carburetor comes with a number of adjustments to fine-tune the engine's performance to your specific riding style and conditions. These adjustments include the main jet, needle jet, pilot jet, and idle jet. The needle jet and pilot jet can be easily adjusted using the provided screwdrivers, while the main jet and idle jet require the use of a jet removal tool.

The carburetor is constructed of high-quality materials, including a brass body and stainless steel components, ensuring durability and resistance to corrosion. Its sleek design not only enhances the appearance of your Jet Ski or Jet Jet, but also provides excellent cooling capabilities, reducing the risk of engine overheating.

Installing the Mikuni JS55/JS550 Carburetor is a straightforward process, with clear instructions provided in the user manual. The kit includes all necessary hardware, such as gaskets, screws, and washers, for a hassle-free installation.

In summary, the Mikuni JS55/JS550 Carburetor is an essential upgrade for your Kawasaki Jet Ski or Jet Jet with a 550 440 engine. Its advanced features, durability, and easy adjustability make it an excellent choice for those seeking to enhance the performance and riding experience of their watercraft.

Pros and Cons of Buying a Kawasaki JS55/JS550 Carburetor or Mikuni 38 for Your Jet Ski

When it comes to enhancing the performance of your Kawasaki Jet Ski, upgrading its carburetor is a popular modification. Two common options in the market are the Kawasaki OEM JS55/JS550 carburetor and the Mikuni 38. This comparison will outline the advantages and disadvantages of both options.

- Designed specifically for Kawasaki Jet Skis: This ensures a perfect fit and optimal engine performance.

- Compatibility with stock parts: Using the OEM carburetor allows you to keep using your stock intake manifold and other related parts.

- Reliability: Since it's the original equipment, it's known for its durability and reliability.

- Limited performance gains: The OEM carburetor may not deliver significant power increases compared to aftermarket options.

- High cost: Original equipment parts are often more expensive than aftermarket alternatives.

- Improved performance: Mikuni carburetors are known for their high-performance capabilities, which can result in increased power and torque.

- Adjustability: The Mikuni 38 offers more adjustability options, allowing you to fine-tune the jet ski for different riding conditions.

- Lightweight: This aftermarket carburetor is lighter than the OEM option, which can contribute to better handling and acceleration.

- Complex installation: Installing an aftermarket carburetor like the Mikuni 38 can be more complicated than installing the OEM carburetor due to its different design and additional components.

- Cost: Aftermarket carburetors, such as the Mikuni 38, are generally more expensive than OEM alternatives.

Both the Kawasaki JS55/JS550 carburetor and the Mikuni 38 have their merits. If you prioritize reliability, compatibility, and ease of installation, the OEM carburetor might be the better choice. However, if you're looking for improved performance and the ability to fine-tune your jet ski, the Mikuni 38 could be worth the investment and the additional challenges.

Consider your personal preferences, budget, and performance goals when deciding between the Kawasaki JS55/JS550 carburetor and the Mikuni 38. If you want a reliable, hassle-free upgrade, stick with the OEM option. If you're willing to invest time and money for increased power and customization, the Mikuni 38 could be the way to go.

Details:

Ready to ship. This has been out of service for quite a while and should be considered parts or rebuild. Will also work on Js440 model's. Carb set up from an early Kawasaki JS550.

Comes as shown.

part #: js55 prices

• $9.99-$38.69

specifications perwatercraft:

• for models: Js550, Js, 550, 440
• for makes: Kawasaki
• mpn: Js55
• part type: Jet Carburetor Manifold

offer perwatercraft:

• started: May 4, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

general perwatercraft:

• condition: Used
• Parts Accessories > Personal Watercraft Parts > Other Parts

seller perwatercraft:

• city: Indianapolis, Indiana
• # reviews: 462
• rating: 99.3%

returns perwatercraft:

• policy: No Returns

shipping perwatercraft:

• carrier: USPS
• type: Calculated
• class: Standard
• transit: 4-10 Days
• cost: $0.00
• service: USPS Ground Advantage

payments perwatercraft:

• other
• credit card: Diners-club
• wallet: Paypal

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