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  2. sku: 4707388231780721
  3. MIKUNI 4JX-14101-00

MIKUNI 4JX-14101-00 Carburetor Flatslide Flat 4JX00 T371

fits model: Yz250, Tm38. make: Yamaha.

4jx-14101-00 Mikuni Yamaha Yz250 Carburetor Tm38 Flatslide Flat 4jx00 Tm T371

( Brand: Mikuni ), ( Type: Carburetor ), ( Needle Valve Set: 3jd-14107-35 ), ( Manufacturer Part Number: 4JX-14101-00 ), ( Throttle Valve 4.0: 3jd-14112-40 ), ( Country/region Of Manufacture: Japan ), ( Vintage Part: Yes )

Review MIKUNI Yamaha Carburetor Flatslide Flat fits YZ250 TM38

The Mikuni VM40SLKT38 Flat Slide Carburetor, part number 4JX-14101-00, is a high-performance carburetor specifically designed for the Yamaha YZ250 motorcycle. This carburetor, which is an upgrade from the original TM371, features a flat slide design that ensures optimal air/fuel mixture delivery for enhanced engine performance.

The VM40SLKT38 is a 38mm carburetor, which means it has a larger venturi diameter compared to the stock TM371. This larger venturi allows for a greater volume of air and fuel mixture to flow into the engine, resulting in improved power and torque. The flat slide design also allows for finer adjustments to the idle mixture, making it easier to dial in the ideal settings for different riding conditions.

The VM40SLKT38 is also equipped with several advanced features that make it a popular choice among performance enthusiasts. For example, it includes a fine-mesh air filter that helps to keep out contaminants and ensure a clean air supply to the engine. The carburetor also includes a needle jet kit, which allows for even finer adjustments to the fuel mixture.

Another notable feature of the Mikuni VM40SLKT38 is its durable construction. The carburetor body is made from high-quality aluminum alloy, which is both lightweight and strong. The diaphragms and gaskets are made from high-temperature resistant materials, ensuring that they can withstand the extreme temperatures and pressures generated by the engine.

Installation of the VM40SLKT38 is relatively straightforward, with many YZ250 owners reporting that it can be installed in just a few hours with basic hand tools. The kit includes all necessary hardware, as well as detailed instructions to guide you through the installation process.

In summary, the Mikuni VM40SLKT38 Flat Slide Carburetor is a high-performance upgrade for the Yamaha YZ250 motorcycle. With its larger venturi diameter, flat slide design, and advanced features, it delivers improved power and torque, as well as easier idle adjustments. Its durable construction ensures long-lasting performance, making it a worthwhile investment for any serious YZ250 enthusiast.

Mikuni 4JX-14101-00 Carburetor for Yamaha YZ250: A Comprehensive Analysis

Introduction:

The Mikuni 4JX-14101-00 carburetor is a popular aftermarket replacement for the stock carburetor on the Yamaha YZ250. This flat slide, TM38, T371 carburetor is known for its performance enhancement and adjustability. In this analysis, we will discuss the pros and cons of purchasing this carburetor for your Yamaha YZ250.

Pros:

1. Improved Performance: The Mikuni carburetor is designed to provide better fuel mixture and airflow, resulting in improved engine performance. This translates to better throttle response, increased power, and smoother engine operation.

2. Adjustability: The Mikuni carburetor offers more adjustability than the stock carburetor, allowing riders to fine-tune the fuel mixture for various riding conditions and personal preferences. This can help optimize engine performance and improve fuel efficiency.

3. Durability: Mikuni carburetors are known for their durability and reliability. The flat slide design is less prone to wear and tear compared to the stock slide design, which can result in longer service intervals and reduced maintenance costs.

4. Easy Installation: The Mikuni carburetor is a direct replacement for the stock carburetor on the Yamaha YZ250, making installation relatively straightforward. This can save time and money compared to other aftermarket modifications.

Cons:

1. Cost: The Mikuni carburetor is more expensive than the stock carburetor. While the performance and adjustability benefits may outweigh the cost, some riders may be deterred by the initial investment.

2. Complexity: The Mikuni carburetor offers more adjustability than the stock carburetor, which can be a double-edged sword. While more adjustability can help optimize engine performance, it can also be more complex to set up and adjust. This may require additional time and expertise.

3. Potential Compatibility Issues: While the Mikuni carburetor is a direct replacement for the stock carburetor on the Yamaha YZ250, there may be compatibility issues with certain aftermarket parts or modifications. It is essential to ensure that all components are compatible before making the switch.

Conclusion:

The Mikuni 4JX-14101-00 carburetor is an excellent aftermarket upgrade for the Yamaha YZ250. Its improved performance, adjustability, durability, and ease of installation make it a worthwhile investment for serious riders. However, the higher cost and potential complexity may be a deterrent for some. Ultimately, the decision to purchase this carburetor depends on your riding style, budget, and technical expertise. If you're looking for improved engine performance and the ability to fine-tune your bike, the Mikuni carburetor is an excellent choice.

Recommendation:

If you're in the market for an aftermarket carburetor for your Yamaha YZ250 and are looking for improved performance, adjustability, and durability, the Mikuni 4JX-14101-00 carburetor is an excellent choice. However, it is essential to ensure that all components are compatible before making the switch and to be prepared for the additional cost and potential complexity. If you're unsure about the installation process or have limited technical expertise, it may be worth considering hiring a professional mechanic to assist with the installation.

part # 4jx1410100 price

  • $80.00

specifications iodacarb:

  • for models: Yz250, Tm38
  • for makes: Yamaha
  • brand: Mikuni
  • type: Carburetor
  • needle valve set: 3jd-14107-35
  • manufacturer part number: 4JX-14101-00
  • throttle valve 4.0: 3jd-14112-40
  • country/region of manufacture: Japan
  • vintage part: Yes

seller iodacarb:

  • rating: 100.0%
  • # reviews: 2483

shipping iodacarb:

  • class: Standard
  • transit: 4-7 Days
  • service: Standard
  • cost: $11.00
  • type: Fixed

offer iodacarb:

  • sold: 0
  • best offers: True
  • quantity: 1
  • started: May 1, 2025
  • options: Ship-to-home
  • availability: In Stock

returns iodacarb:

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

general iodacarb:

  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors
  • condition: Used

payments iodacarb:

  • credit card: Diners-club
  • wallet: Google-pay
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for models: yz250, tm38, for makes: yamaha, type: carburetor, needle valve set: 3jd-14107-35, throttle valve 4.0: 3jd-14112-40, country/region of manufacture: japan, vintage part: yes,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > carburetors, sku: 4707388231780721,

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1 offer $80.00 USD
  • Offer #1: $80.00 price + $9.95 delivery = $89.95* total. The threads are all in great shape. Good used condition.+$9.95 shipping