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Item #:
166357688
Carburetor Main Jet Kit fit for Yamaha YZ400F WR400F YZ426F YZ450F WR450F YFZ450, Suzuki DRZ400 RMZ450 #160 165 170 175 180 185 190 195 200, 45 48 50
89% of respondents would recommend this to a friend
Item #:
166357688
JMD 3141
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Order now and get it around Wednesday, September 30
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Offering reliable carburetor performance and tuning options for a wide range of off-road motorcycles and ATVs.
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What Stands Out
Versatile Compatibility
Designed to fit a wide range of Yamaha and Suzuki models, enhancing versatility and ensuring that users can maintain multiple bikes with a single kit.
Precision Jets
Includes main and pilot jets with precise sizing options from #160 to #200, allowing optimal tuning for various performance needs and ensuring smooth engine operation.
Complete Needle Set
Comes with a comprehensive slow needle set, enabling detailed adjustments for improved fuel delivery, enhancing throttle response and overall performance.
Product Details
Who Should Buy?
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Off-Road Enthusiasts
Ideal for riders who frequently engage in off-road biking, ensuring optimal engine performance and efficiency.
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Custom Tuners
Perfect for individuals customizing their bikes, providing a range of jet sizes for precise tuning.
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Performance Riders
Great for competitive riders looking to enhance throttle response and engine performance with proper jet adjustments.
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Casual Riders
Not necessary for weekend riders who prefer factory settings and don't require detailed tuning adjustments.
Product Description
Carburetor Main Jet Kit fit for Yamaha YZ400F WR400F YZ426F YZ450F WR450F YFZ450, Suzuki DRZ400 RMZ450 #160 165 170 175 180 185 190 195 200, 45 48 50 52 55 Pilot Jets Slow Needle Set Replace Crab
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a Carburetor Main Jet Kit and why do I need it?
Answer: A Carburetor Main Jet Kit is essential for optimizing the air-fuel mixture in your motorcycle's carburetor system, directly influencing performance and efficiency. If your bike is struggling with power, poor fuel economy, or inconsistent idling, this kit can help restore its performance. It includes various jet sizes to allow customization based on your riding needs and environmental conditions, ensuring your engine runs smoothly under different scenarios. -
Question:
How do I know if I need to change my main jet?
Answer: If you notice decreased acceleration, poor throttle response, or if you've modified your exhaust or intake, it’s likely time to change your main jet. A change in altitude or riding style can also necessitate adjustments. The main jet influences how much fuel mixes with air in the carburetor; therefore, customizing it can enhance your bike's performance, making it essential for riders looking to optimize their machine for specific conditions. -
Question:
What models are compatible with the Carburetor Main Jet Kit?
Answer: This Carburetor Main Jet Kit fits several Yamaha models such as YZ400F, WR400F, YZ426F, YZ450F, WR450F, and YFZ450, as well as Suzuki models including DRZ400 and RMZ450. Its compatibility ensures a broader range of users can enhance their bike's performance by simply selecting the right jet size for their specific riding conditions, ultimately improving throttle response and power delivery. -
Question:
How do I install the Carburetor Main Jet?
Answer: Installing the Carburetor Main Jet involves removing the carburetor from the motorcycle, which allows access to the jets. After safely removing the old jet, replace it with the appropriate size from the kit based on your tuning needs. It’s a straightforward process, but always ensure to follow your bike's service manual for the best results. Proper installation can significantly enhance your bike's performance, making it responsive and more enjoyable to ride. -
Question:
Can tuning the main jet improve fuel efficiency?
Answer: Yes, tuning the main jet can significantly improve fuel efficiency. By adjusting the air-fuel mixture, you can ensure that the engine runs optimally, preventing excessive fuel consumption. This is particularly beneficial for riders who frequently travel long distances or ride in varying conditions, as it allows them to maximize fuel usage while retaining power and performance across different environments. -
Question:
What sizes are available in the Carburetor Main Jet Kit?
Answer: The Carburetor Main Jet Kit includes sizes #160, 165, 170, 175, 180, 185, 190, 195, and 200, allowing you to fine-tune your engine for optimal performance. Each size corresponds to different fuel flow rates, so you can select the right size based on your engine's needs and environmental factors. Having multiple sizes enables you to experiment for the best match to achieve the ideal balance between power and fuel efficiency. -
Question:
Is this kit suitable for both racing and recreational use?
Answer: Absolutely! This Carburetor Main Jet Kit is designed to cater to both racing and recreational riding. For racing, precise tuning can enhance performance by maximizing throttle response and acceleration. For recreational users, it enables fine-tuning to suit casual rides, ensuring a smoother and more enjoyable experience. Whether you’re hitting the track or exploring trails, this kit can help optimize your bike’s engine to meet your riding style. -
Question:
Where can I buy Carburetor Main Jet Kit fit for my Yamaha or Suzuki?
Answer: You can purchase the Carburetor Main Jet Kit specifically designed for Yamaha and Suzuki models from Ubuy. They're known for their extensive range of automotive products, ensuring you get the right kit that fits your bike. With their user-friendly platform and reliable service, Ubuy makes it simple to find the parts you need to enhance your motorcycle's performance. -
Question:
Will I need any additional tools to install the Carburetor Main Jet?
Answer: Typically, you will need basic hand tools such as screwdrivers and a wrench set to install the Carburetor Main Jet. Depending on your motorcycle model, you may also find a socket set useful for removing the carburetor. Additionally, having a clean workspace and possibly some carburetor cleaner will help ensure a smooth installation, leading to a well-performing bike once you complete the jet swap. -
Question:
What are common signs of a clogged carburetor?
Answer: Common signs of a clogged carburetor include difficulty starting the engine, rough idling, or stalling during acceleration. If your bike hesitates or lacks power under load, these could indicate carburetor issues. Regular maintenance, including jet replacement, can improve engine performance and life. Recognizing these symptoms early allows you to address the problem and restore optimal function before further damage occurs.
KH866 Jets Editorial Review
Carburetor Main Jet Kit fit for Yamaha YZ400F WR400F YZ426F YZ450F WR450F YFZ450, Suzuki DRZ400 RMZ450 #160 165 170 175 180 185 190 195 200, 45 48 50 52 55 Pilot Jets Slow Needle Set Replace Crab offers a comprehensive selection of jet sizes to effectively tune your motorcycle's performance. Users have noted that these jets are nicely machined with precise finishes, facilitating smooth installation. The feedback highlights the usefulness of having various sizes available for fine-tuning, especially during rejetting processes. While the majority report successful performance improvements, a few users experienced issues with incorrect jet sizes.
Customer Reviews & Ratings
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Pros
- Comprehensive selection of jet sizes available
- Well-machined with precise finishes
- Easy installation with clearly marked sizes
- Great for fine-tuning carburetors
- Super functional with excellent build quality
Cons
- Some users reported incorrect jet sizes
Platform Trust & Buyer Confidence
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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11 September 2026 · via Trustpilot
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JMD 3141
Order now and get it around Wednesday, September 30
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Features & Benefits
- Compatible with multiple Yamaha, Suzuki, Honda, and Kawasaki models.
- Includes a complete set of 14 jets for versatile tuning.
- Enhances throttle response and engine performance in tough terrains.
- Designed to restore proper fuel-air mixture for optimal performance.
- New condition, pre-tested, and ready for direct fit installation.
- Our support team is committed to assisting with any product issues.
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