MIKUNI MK-BSR37-B1 Carburetor Rebuild Kit FT99-FT06

( Brand: Mikuni ), ( Manufacturer Part Number: MK-BSR37-B1 ), ( Type: Genuine Mikuni Carburetor Replacement Parts ), ( Country Of Origin: Japan ), ( California Prop 65 Warning: Warning )

Review MIKUNI Genuine Carburetor Rebuild Kit Yamaha V star fits STAR 1100

The **Mikuni MK-BSR37-B1 Carburetor Rebuild Kit** is a meticulously engineered solution designed specifically for Yamaha s **V-Star 1100** models produced between **1999 and 2006**, ensuring optimal performance, reliability, and longevity for this iconic cruiser. This premium rebuild kit is crafted to restore your motorcycle s **BSR37-B1 carburetor** to factory-like precision, addressing common issues such as sluggish acceleration, inconsistent fuel delivery, or excessive wear that can plague high-mileage engines. At its core, the kit includes a **comprehensive set of high-quality replacement parts**, including a **new gasket set** featuring O-rings, seals, and grommets to prevent leaks and ensure a tight, secure fit, while the **new jet set** comprising the main jet, pilot jet, and idle mixture screw is precision-machined to Mikuni s exacting standards, guaranteeing accurate fuel metering for smooth, responsive throttle operation. The kit also incorporates a **new throttle body assembly**, complete with a **rebuilt throttle cable stop** and **adjusted throttle linkage**, which eliminates play and ensures crisp, progressive throttle response critical for the V-Star 1100 s smooth, linear power delivery. Additionally, the **new float bowl gasket** and **fuel pump diaphragm** are included to prevent fuel leaks and maintain proper float level, while the **new idle mixture screw and needle** are designed to fine-tune the idle for a stable, vibration-free operation, even under varying load conditions. Beyond the mechanical components, this rebuild kit emphasizes **durability and ease of installation**, with parts engineered from **high-grade materials** such as brass, stainless steel, and corrosion-resistant plastics to withstand the demands of frequent use and harsh riding environments. Whether you re restoring a classic V-Star 1100 to its original glory or maintaining a well-loved ride, the **Mikuni MK-BSR37-B1 Rebuild Kit** provides the confidence of a professional-grade rebuild, ensuring your motorcycle runs with the same effortless power and refinement it was designed for. With step-by-step compatibility and a focus on **long-term reliability**, this kit is an indispensable investment for any Yamaha owner seeking to preserve the soul of their cruiser while keeping it running at its best.

### Pros and Cons of buying a Mikuni MK-BSR37-B1 Rebuild Kit for a Yamaha V-Star 1100 (FT99-FT06)

1. **Compatibility and Fitment** The Mikuni MK-BSR37-B1 is specifically designed for the Yamaha V-Star 1100 (FT99-FT06) models, ensuring a proper fit without modifications. This reduces the risk of installation issues or improper performance.

2. **High-Quality Components** Mikuni is a well-respected brand in the motorcycle carburetor industry, known for producing reliable and durable parts. The rebuild kit includes genuine or high-quality replacement components, such as jets, gaskets, and seals, which are often better than aftermarket alternatives.

3. **Performance Improvement Potential** If the original carburetor is clogged, worn, or improperly adjusted, a rebuild can restore or even enhance throttle response, fuel efficiency, and overall engine performance. A clean rebuild ensures optimal fuel-air mixture, which can make the bike feel more responsive and smoother.

4. **Cost-Effective Alternative to Replacement** Replacing an entire carburetor can be expensive, especially if you need to buy a new or used unit. A rebuild kit is significantly cheaper, making it a practical choice for restoring functionality without a full replacement.

5. **Easier Maintenance** Rebuilding the carburetor yourself (or with professional help) can be a simpler and less invasive process than swapping out the entire carburetor. This can save time and labor costs if you re comfortable with basic mechanical work.

6. **Prevents Future Issues** If the carburetor is showing signs of wear (e.g., rough idle, hesitation, or poor acceleration), addressing it early with a rebuild can prevent more serious problems down the line, such as engine damage from rich or lean mixtures.

7. **Access to Original Specifications** The rebuild kit comes with the correct jets and settings for your bike s engine, ensuring that the carburetor performs as intended by Yamaha. This avoids the guesswork that comes with using random aftermarket parts.

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1. **Skill and Time Required** Rebuilding a carburetor requires patience, attention to detail, and some mechanical knowledge. If you re not experienced with carburetor maintenance, the process can be frustrating, time-consuming, or even risky if done incorrectly. Common mistakes (e.g., improper jet selection, incorrect assembly) can lead to poor performance or damage.

2. **Potential for Contamination** If the carburetor is heavily fouled with carbon deposits, old fuel, or debris, a rebuild may not fully resolve issues unless the internals are thoroughly cleaned. This might require additional steps like ultrasonic cleaning or using carburetor cleaner solutions.

3. **Dependence on Quality of Parts** While Mikuni is reputable, the quality of the rebuild kit can vary depending on the source (e.g., OEM vs. aftermarket vs. counterfeit parts). Cheaper or knockoff kits may include subpar components that wear out quickly or fail to perform as expected.

4. **Limited Longevity Compared to New Carburetor** Even with a rebuild, a used or older carburetor may not last as long as a brand-new one. Over time, internal components like the needle and jet may still wear out, requiring another rebuild or replacement sooner than desired.

5. **Cost of Additional Tools** If you don t already own them, rebuilding a carburetor may require specialized tools such as carburetor cleaning solvents, a vacuum pump for testing, and precision measuring tools. These can add to the overall cost if you re not prepared.

6. **Risk of Overhauling Without Necessity** If the carburetor is still in decent condition but just needs minor adjustments (e.g., cleaning the jets or replacing a gasket), a full rebuild might be overkill. In such cases, a partial rebuild or simpler maintenance could suffice.

7. **Professional Help May Be Necessary** If you re not confident in your abilities, hiring a mechanic to perform the rebuild can be expensive. Labor costs for carburetor work can add up, especially if the job requires disassembly of other components (e.g., throttle body, fuel lines).

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The Mikuni MK-BSR37-B1 rebuild kit is a solid choice for Yamaha V-Star 1100 owners who want to restore or improve their carburetor s performance without the expense of a full replacement. It offers compatibility, quality components, and the potential for better engine performance. However, the success of the rebuild depends heavily on the user s skill level, the condition of the carburetor, and the quality of the kit itself.

If you re comfortable with mechanical work and willing to invest time in learning the process, a rebuild can be a cost-effective and rewarding project. For those less experienced or short on time, it may be worth considering professional help or evaluating whether a simpler maintenance task (e.g., cleaning the carburetor) would suffice.

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- Your carburetor is showing clear signs of wear (e.g., rough idle, stalling, poor acceleration).

- You re willing to learn or have access to guidance on carburetor rebuilding.

- You ve confirmed the kit is genuine (to avoid counterfeit parts).

- You re prepared to invest time in cleaning and reassembling the carburetor properly.

- The carburetor is severely damaged or beyond simple repair (e.g., cracked body, seized internals).

- You lack the time, tools, or patience for a DIY rebuild.

- Your bike s carburetor is relatively new and only needs minor adjustments (e.g., jet swaps for tuning).

- You re unsure about the quality of the rebuild kit and prefer a new carburetor for long-term reliability.

For most V-Star 1100 owners facing carburetor issues, the Mikuni rebuild kit is a practical and economical solution provided the work is done carefully. If in doubt, consult a motorcycle mechanic to assess whether a rebuild is the best option or if other fixes (e.g., cleaning, jet adjustments) would work.

Details:

Genuine Mikuni MK-BSR37-B1 Carburetor Rebuild Kit. 1999 2006 Yamaha V-Star 1100.

part #: mkbsr37b1 price

• $72.95

specifications intakefuelmotorcycle:

• for models: 1100, Star
• for makes: Yamaha
• brand: Mikuni
• mpn: Mk-bsr37-b1
• type: Genuine Mikuni Carburetor Replacement Parts
• country of origin: Japan
• california prop 65 warning: Warning

general intakefuelmotorcycle:

• condition: New
• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

seller intakefuelmotorcycle:

• # reviews: 9292
• city: Canoga Park, California
• rating: 100.0%

returns intakefuelmotorcycle:

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

payments intakefuelmotorcycle:

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

shipping intakefuelmotorcycle:

• class: Standard, Expedited
• cost: $8.00
• carrier: USPS
• type: Fixed
• transit: 3-8 Days
• service: USPS Ground Advantage, USPS Priority Mail

offer intakefuelmotorcycle:

• availability: In Stock
• options: Ship-to-home
• started: May 18, 2026
• quantity: 6
• sold: 0

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