1. Watercraft Intake & Fuel Systems Products
  2. sku: 15489020834529673
  3. SUZUKI 59271-507

SUZUKI 59271-507 Carburetor Carb High Needle Screw Jet Ski

fits model: Js400, 440. make: Suzuki.

59271-507 Suzuki Oem Carburetor Carb High Speed Needle Screw Jet Ski Js400 440

( Manufacturer Part Number: 59271-507 ), ( Part Type: Jet Carburetor Screw ), ( Country Of Origin: Japan )

Review SUZUKI Oem Carburetor Carb High Speed Needle Screw Jet Ski fits JS400 440

The **Suzuki 59271-507 Carburetor Carb High Needle Screw** is a precision-engineered component designed exclusively for Suzuki JS400 and JS440 jet ski models, ensuring optimal performance, throttle response, and fuel efficiency. This high-quality carburetor needle screw plays a critical role in regulating the fuel-air mixture within the engine s carburetor system, allowing riders to fine-tune the jet ski s power delivery for smoother acceleration, better handling, and enhanced overall performance. Crafted from durable, corrosion-resistant materials, this needle screw is built to withstand the demanding conditions of high-speed water sports, ensuring long-lasting reliability even under rigorous use. Whether you're cruising along calm waters or tackling aggressive maneuvers, this component helps maintain a balanced fuel flow, reducing the risk of engine overheating, rough idling, or excessive fuel consumption. Ideal for both stock and modified setups, the **59271-507** is a must-have replacement part for jet ski enthusiasts looking to restore factory performance or optimize their ride for speed and efficiency. Its precise engineering and compatibility with Suzuki s JS400 and JS440 models make it a straightforward upgrade for mechanics and DIY enthusiasts alike, ensuring a seamless fit and immediate improvement in engine responsiveness.

**Pros and Cons of buying a Suzuki 59271-507 Carburetor (Carb High Needle & Jet) for a JS400/JS440 Jet Ski**

### **Pros**

1. **OEM Compatibility** This is an original equipment part designed specifically for Suzuki JS400 and JS440 models, ensuring a perfect fit and reliable performance without modifications.

2. **Reliability** Suzuki parts are known for durability, especially in marine applications where corrosion resistance and consistent fuel-air mixture are critical.

3. **Performance Optimization** Adjusting the carburetor needle and jet can fine-tune throttle response, fuel efficiency, and power output, which is beneficial for both stock and modified engines.

4. **Ease of Installation** Being a direct replacement, installation is straightforward for those with basic mechanical skills, requiring only standard tools and minimal disassembly.

5. **Cost-Effective Upgrade** Compared to full engine rebuilds or aftermarket carburetor kits, this part offers a targeted solution for common issues like rough idling, poor acceleration, or fuel waste.

6. **Compatibility with Aftermarket Tuning** If you plan to modify your jet ski (e.g., with a bigger jet or performance exhaust), this carburetor can be adjusted to work better with those changes.

7. **Preventative Maintenance** Replacing worn-out needles and jets proactively can avoid more expensive engine damage caused by poor fuel delivery or carbon buildup.

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### **Cons**

1. **Limited Availability** Suzuki parts, especially older or less common ones like this carburetor, may not be readily available at all marine or auto parts stores. You may need to order online from specialty suppliers, which could take time.

2. **Skill Dependency** While installation is manageable, improper adjustment of the needle or jet can lead to worse performance (e.g., flooding, lean mixtures, or stalling). Beginners may need guidance or professional help.

3. **Cost Relative to Newer Models** If your jet ski is older, the part itself may not be significantly cheaper than buying a used or rebuilt engine, depending on market prices.

4. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (especially online marketplaces) risks receiving fake or low-quality replicas that fail prematurely.

5. **Wear and Tear on Other Components** If the rest of your carburetor or engine is degraded (e.g., worn gaskets, clogged passages), replacing just the needle and jet may not fully resolve issues, requiring additional work.

6. **Fuel Quality Dependence** Even with a new carburetor, poor fuel quality (e.g., ethanol-blended gas with additives) can degrade performance over time, necessitating regular cleaning or maintenance.

7. **Time-Consuming Adjustment Process** Finding the optimal needle and jet settings may require multiple test runs and fine-tuning, which can be frustrating for those without experience.

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### **Conclusion**

The **Suzuki 59271-507 carburetor needle and jet** is a **highly recommended upgrade** for JS400/JS440 owners experiencing carburetor-related issues such as poor throttle response, fuel waste, or rough idling. Its **OEM quality, reliability, and compatibility** make it a practical choice for both maintenance and performance tuning. However, the **need for careful installation and adjustment**, along with **potential availability challenges**, means it s best suited for those with **some mechanical experience** or willingness to seek professional help.

If your jet ski s carburetor is the primary culprit behind performance problems, this part offers a **cost-effective and efficient fix**. For those unsure about adjustments, pairing it with a **carburetor cleaning kit** or consulting a Suzuki specialist can ensure optimal results.

**Final Recommendation:** Buy this part if:

- You re confident in basic carburetor maintenance or have access to guidance.

- Your jet ski s carburetor shows signs of wear (e.g., carbon buildup, inconsistent idle).

- You want to improve throttle response without a full engine overhaul.

Avoid buying if:

- You lack mechanical experience and aren t willing to learn or seek help.

- Your jet ski has other major engine issues (e.g., worn pistons, fuel pump failure).

- You can t find a reputable seller to ensure authenticity.

For long-term reliability, pair this upgrade with **regular carburetor cleaning** and **high-quality fuel**.

Details:

Some Parts may be Removed from Manufactures Package for Inspection and or Pictures. In OEM Package or as Pictured Above. OEM Suzuki Part as Pictured Above. 100% Perfect Condition From Dealer Inventory.

part #: 59271507 price

  • $19.99

specifications jetskiintakeez:

  • for models: Js400, 440
  • for makes: Suzuki
  • mpn: 59271-507
  • part type: Jet Carburetor Screw
  • country of origin: Japan

returns jetskiintakeez:

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

seller jetskiintakeez:

  • city: Ogden, Utah
  • # reviews: 148
  • rating: 100.0%

general jetskiintakeez:

  • condition: New other see details
  • Parts Accessories > Personal Watercraft Parts > Intake Fuel Systems

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offer jetskiintakeez:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: February 2, 2026
  • best offers: True
  • options: Ship-to-home

shipping jetskiintakeez:

  • transit: 3-8 Days
  • type: Fixed
  • carrier: USPS
  • service: USPS Ground Advantage
  • class: Standard
  • cost: $0.00
for models: js400, 440, for makes: suzuki, part type: jet carburetor screw, country of origin: japan,
category: watercraft parts > intake fuel systems, sku: 15489020834529673,
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  • New other (see details). Offer #1 priced at $19.99 + $0.00 shipping estimate = $19.99* total. OEM Suzuki Part as Pictured Above. OEM Suzuki Part.FREE SHIPPING

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