MIKUNI TM38-140 Flat Slide Carburetor Carb 38MM TM38-86

( Brand: Mikuni ), ( Manufacturer Warranty: 90 Day ), ( Machine Type: Off-road Motorcycle ), ( Size: 38mm ), ( Items Included: Mounting Hardware ), ( Manufacturer Part Number: TM38-140 ), ( Material: Aluminum ), ( Disclaimer: Please Provide Us With Your Year, Make And Model During Checkout ), ( Engine Type: 2-stroke ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Performance Part: Yes )

Review MIKUNI 38mm Series Flat Slide Full Carburetor Carb Assembly

Introducing the Mikuni TM38-140 Flat Slide Carburetor, a high-performance carburetor engineered for enthusiasts seeking optimal engine response and fuel efficiency for their 38mm throttle bodies. This specific model, the TM38-86, is a part of Mikuni's extensive line of top-tier carburetors.

The Mikuni TM38-140 Flat Slide Carburetor is characterized by its large 38mm throttle body, which allows for a generous airflow rate, resulting in enhanced engine power and acceleration. The carburetor employs a flat slide design, which means that the slide is parallel to the intake port, ensuring an even fuel-air mixture throughout the engine's RPM range.

The TM38-140 features Mikuni's proprietary "B-Jet" system, a secondary fuel jet located below the main jet that helps improve idle stability and reduces the need for constant jet adjustments. The carburetor also comes equipped with an adjustable main jet, allowing users to fine-tune the fuel mixture to their specific engine requirements.

Mikuni's commitment to precision manufacturing is evident in the TM38-140's meticulously crafted components. The carburetor's body is made from high-quality aluminum, ensuring a lightweight yet durable design. The needle and seat assembly are machined to tight tolerances, ensuring a consistent fuel-air mixture and smooth engine operation.

The TM38-140 Flat Slide Carburetor comes with a comprehensive installation kit, including various gaskets, hardware, and mounting brackets, making the installation process as straightforward and hassle-free as possible. Additionally, the carburetor is designed to be easy to maintain, with easily accessible adjustments and a simple disassembly process.

In summary, the Mikuni TM38-140 Flat Slide Carburetor, model TM38-86, is a high-performance carburetor that delivers superior engine response, fuel efficiency, and ease of installation and maintenance. With its large 38mm throttle body, flat slide design, and proprietary B-Jet system, this carburetor is an ideal choice for enthusiasts seeking to maximize the potential of their engine.

Mikuni TM38-140 (38mm Flat Slide Carburetor) Buying Decision: Pros, Cons, and Conclusion

The Mikuni TM38-140 is a popular 38mm flat slide carburetor model. This section provides an in-depth analysis of its advantages, disadvantages, and a final recommendation.

1. Superior Throttle Response: Mikuni carburetors are known for their quick and responsive throttle action, making them an excellent choice for motorcycles that require precise fuel delivery.

2. Smooth Power Delivery: The Mikuni TM38-140 offers smooth power delivery throughout the rev range, ensuring optimal engine performance and rider satisfaction.

3. Durability: Mikuni carburetors are renowned for their durability, making them an excellent investment for long-term use.

4. Easy to Tune: The Mikuni TM38-140 is relatively easy to tune, allowing riders to fine-tune their bike's fuel mixture to suit their specific riding style and conditions.

5. Wide Application: This carburetor model is suitable for a wide range of motorcycle applications, making it a versatile choice for various bikes.

1. Complexity: Compared to modern fuel injection systems, carburetors like the Mikuni TM38-140 can be more complex to set up and maintain, requiring a certain level of expertise and experience.

2. Fuel Efficiency: Carburetors, in general, are not as fuel-efficient as modern fuel injection systems, which can lead to higher fuel consumption and increased operating costs.

3. Emissions: Carburetors can produce higher emissions compared to fuel injection systems, which may not meet modern emissions standards.

4. Vibration: Some riders may experience increased vibration levels when using a Mikuni TM38-140 due to its design and power delivery characteristics.

The Mikuni TM38-140 (38mm Flat Slide Carburetor) offers several advantages, such as superior throttle response, smooth power delivery, and durability. However, it also comes with some disadvantages, like complexity, fuel efficiency, emissions, and vibration. Considering these factors, riders who value the advantages and have the expertise to set up and maintain the carburetor will likely benefit from this investment. For those seeking a more modern, efficient, and emission-compliant solution, a fuel injection system may be a better choice. Ultimately, the decision depends on your specific preferences, experience level, and motorcycle application.

part # tm38140 prices

• $76.39-$150.00

specifications iodacarb:

• brand: Mikuni
• manufacturer warranty: 90 Day
• machine type: Off-road Motorcycle
• size: 38mm
• items included: Mounting Hardware
• manufacturer part number: TM38-140
• material: Aluminum
• disclaimer: Please Provide Us With Your Year, Make And Model During Checkout
• engine type: 2-stroke
• choke type: Mechanical
• type: Carburetor
• performance part: Yes

offer iodacarb:

• started: December 14, 2025
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

seller iodacarb:

• # reviews: 11
• rating: 100.0%

returns iodacarb:

• policy: No Returns

shipping iodacarb:

• type: Calculated
• cost: $8.54
• carrier: USPS
• transit: 4-9 Days
• class: Standard
• service: USPS Ground Advantage

payments iodacarb:

• wallet: Google-pay
• credit card: Mastercard
• other

general iodacarb:

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

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