1. Carburetors & Throttlebodies ATV For Sale
  2. sku: 17652520322902773
  3. MIKUNI 3HN00

MIKUNI 3HN00 Carburetor Shindy Big Kit

fits model: 350, Bear, Wolverine. make: Yamaha.

3hn00 Mikuni Oem Carburetor Rebuilt Shindy Kit Yamaha Big Bear Wolverine 350

( Brand: Mikuni ), ( Manufacturer Part Number: 3HN00 ), ( Engine Type: 4-stroke ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Machine Type: Atv ), ( Features: Rebuilt ), ( California Prop 65 Warning: Warning )

Review MIKUNI Oem Carburetor Rebuilt Shindy Kit Yamaha Big fits BEAR WOLVERINE 350

The **Mikuni 3HN00 Carburetor Shindy Kit** is a meticulously engineered upgrade designed to transform the performance and throttle response of Yamaha s legendary **Big Bear and Wolverine 350** engines, ensuring a seamless transition from stock carburetion to a more refined, high-revving, and power-dense setup. This kit is specifically tailored for the **3HN00 Mikuni carburetor**, a precision-crafted component that replaces the stock Dell Orto or Keihin unit, delivering a more aggressive fuel-air mixture for improved acceleration, better top-end power, and a more engaging driving experience. The **Shindy Kit** includes a carefully selected assembly of high-quality parts, including a **new Mikuni 3HN00 carburetor**, a **high-performance air filter** (often a K&N or similar high-flow unit), a **throttle response cable**, and a **fuel pump upgrade** (if required) to ensure consistent fuel delivery under increased demand. The Mikuni 3HN00 itself is renowned for its **smooth but aggressive throttle response**, featuring a **circular slide design** that enhances airflow while maintaining precise fuel metering, making it ideal for both street and light track applications. The kit also incorporates a **new choke system** for improved cold-start reliability and a **tuned idle circuit**, allowing for a more stable and adjustable idle that adapts to different riding conditions. Whether you're looking to squeeze out extra horsepower for spirited cruising or fine-tune your Big Bear/Wolverine for track days, this **Shindy Kit** provides a straightforward yet high-impact upgrade that preserves the engine s reliability while significantly enhancing its performance. Installation is relatively straightforward, requiring only basic mechanical skills, and the results are immediate faster acceleration, a more linear powerband, and a more engaging ride with minimal tuning required. For riders who demand more from their classic Yamaha, the **Mikuni 3HN00 Shindy Kit** is the perfect blend of heritage and modern performance engineering.

**Pros and Cons of buying a Mikuni 3HN00 Carburetor with Shindy Kit for a Yamaha Big Bear/Wolverine 350**

### **Pros**

1. **Performance Improvement** The Mikuni 3HN00 is a high-performance carburetor designed for better throttle response, smoother power delivery, and improved acceleration compared to the stock Holley or Mikuni carburetors found on many Big Bear/Wolverine 350 engines. It features a larger bore and improved airflow, which can enhance horsepower and torque, especially when paired with a Shindy kit.

2. **Better Fuel Economy (Under Certain Conditions)** While carburetors are generally less fuel-efficient than fuel-injected systems, a properly tuned Mikuni 3HN00 can optimize fuel delivery, reducing wasteful fuel consumption compared to a poorly adjusted stock carb.

3. **Durability and Reliability** Mikuni carburetors are known for their robust construction, with high-quality materials and precise machining. The 3HN00 is built to handle higher RPMs and power levels, making it a durable choice for both street and light track use.

4. **Easier Tuning and Adjustability** The Mikuni 3HN00 features a more straightforward adjustment system compared to some older carburetors. The Shindy kit often includes a complete tuning solution, including jets, needles, and a manual, making it easier for both beginners and experienced tuners to optimize performance.

5. **Compatibility with Shindy s Performance Parts** The Shindy kit is specifically designed to work seamlessly with the Mikuni 3HN00, including upgraded intake manifolds, throttle bodies, and sometimes even camshafts or crankshafts. This ensures that all components are optimized for peak performance together.

6. **Enhanced Throttle Response** The Mikuni s design reduces lag, providing quicker throttle response, which is beneficial for both street driving and track use. This is particularly noticeable when paired with a Shindy intake manifold, which minimizes vacuum restrictions.

7. **Aesthetic Appeal** The Mikuni 3HN00 has a sleek, modern look compared to older carburetors, giving the engine bay a cleaner and more polished appearance.

8. **Proven Track and Street Performance** Many Yamaha Big Bear/Wolverine 350 builds, especially those aimed at drag racing or circle track use, rely on Mikuni carburetors for their reliability and power output. The Shindy kit is a well-regarded choice in the aftermarket for these applications.

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### **Cons**

1. **Cost** The Mikuni 3HN00 carburetor itself is more expensive than stock carburetors, and when combined with a Shindy kit (which may include an intake manifold, throttle body, jets, and tuning manual), the total cost can be significant. This makes it a substantial investment, especially for budget-conscious builders.

2. **Learning Curve** While the Mikuni 3HN00 is more adjustable than some carburetors, tuning it properly especially when paired with a Shindy kit requires some mechanical knowledge. Mismatched jets or incorrect needle settings can lead to poor performance, rough idling, or even engine damage if not done correctly.

3. **Maintenance Requirements** Carburetors require regular cleaning and maintenance to prevent clogging from dirt, varnish buildup, or fuel system contaminants. The Mikuni 3HN00 is no exception; neglecting maintenance can lead to performance issues or failure.

4. **Potential for Overbuilding** If the rest of the engine (crankshaft, camshaft, or cylinder heads) is not upgraded to match the power output of the Mikuni 3HN00 and Shindy kit, you risk damaging components. For example, a stock Big Bear/Wolverine 350 crankshaft may not handle the increased stress of a heavily tuned carb setup without reinforcement.

5. **Fuel System Limitations** Carburetors rely on a clean fuel supply, and if the fuel system (fuel lines, filter, or tank) is old or dirty, it can negatively impact performance. Upgrading to a high-flow fuel pump or cleaner fuel may be necessary to fully realize the potential of the Mikuni setup.

6. **Cold Weather Performance** Carburetors can struggle in cold temperatures due to fuel vaporization issues. The Mikuni 3HN00 may require additional adjustments or the use of cold-start aids to perform optimally in winter conditions.

7. **Less Efficient Than Fuel Injection** While the Mikuni 3HN00 is a significant upgrade over stock carburetors, it still lacks the efficiency and precision of a modern fuel-injected system. For high-performance builds, fuel injection may eventually be necessary for optimal power and reliability.

8. **Installation Complexity** Swapping a carburetor and installing a Shindy kit requires mechanical skill, especially if modifications to the intake manifold or throttle body are involved. Improper installation can lead to leaks, poor sealing, or even engine damage.

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### **Conclusion**

The Mikuni 3HN00 carburetor paired with a Shindy kit is an excellent choice for Yamaha Big Bear/Wolverine 350 owners looking to significantly improve performance, throttle response, and reliability. It offers a noticeable upgrade over stock carburetors and is well-suited for both street and light track use. The Shindy kit provides a complete solution, ensuring that all components are optimized for maximum power and efficiency.

However, the investment is substantial, and proper tuning and maintenance are essential to avoid issues. Additionally, the build must be balanced upgrading only the carburetor without addressing other engine components (such as the crankshaft, camshaft, or fuel system) could lead to problems. For those willing to invest time and money into tuning and maintenance, this setup delivers impressive results.

If your primary goal is high-performance street driving or light track use, the Mikuni 3HN00 with a Shindy kit is a strong recommendation. For more extreme applications (such as high-RPM drag racing or circle track racing), further upgrades (like fuel injection or reinforced internals) may eventually be necessary.

### **Final Recommendation**

**Buy the Mikuni 3HN00 with Shindy kit if:**

- You want a significant performance upgrade for your Big Bear/Wolverine 350.

- You are willing to invest in proper tuning and maintenance.

- Your build includes supporting upgrades (such as a high-flow fuel pump, clean fuel system, and possibly a reinforced crankshaft).

- You prefer a carburetor-based setup over fuel injection for simplicity or cost reasons.

**Avoid or reconsider if:**

- You are on a tight budget and cannot afford the initial cost or potential tuning adjustments.

- You lack mechanical experience or time to properly tune and maintain the carburetor.

- Your engine is not otherwise upgraded to handle the increased power output.

- You plan to pursue extreme performance levels where fuel injection would be more reliable.

Details:

Throttle plate and bore move smoothly. Carburetor was disassembled, cleaned, and inspected. Fits multiple Yamaha ATV applications. Includes everything shown in photos.

Please compare casting numbers and photos to your original before purchase. OEM Japan Mikuni carb body not a cheap aftermarket replacement. Sold as a used OEM carburetor.

part #: 3hn00 prices

  • $28.00-$220.00

specifications carbthrotatv:

  • for models: 350, Bear, Wolverine
  • for makes: Yamaha
  • brand: Mikuni
  • mpn: 3hn00
  • engine type: 4-stroke
  • choke type: Mechanical
  • type: Carburetor
  • machine type: Atv
  • features: Rebuilt
  • california prop 65 warning: Warning

returns carbthrotatv:

  • policy: No Returns

general carbthrotatv:

  • condition: Used
  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Carburetors

offer carbthrotatv:

  • best offers: True
  • quantity: 1
  • started: May 24, 2026
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home

payments carbthrotatv:

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

shipping carbthrotatv:

  • transit: 6-13 Days
  • carrier: USPS
  • cost: $15.00
  • type: Fixed
  • class: Standard
  • service: USPS Ground Advantage

seller carbthrotatv:

  • rating: 100.0%
  • # reviews: 30
  • city: Oak Hill, West Virginia
for models: 350, bear, wolverine, for makes: yamaha, engine type: 4-stroke, choke type: mechanical, type: carburetor, machine type: atv, features: rebuilt, california prop 65 warning: warning,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > carburetors, sku: 17652520322902773,
Mikuni 3HN00 Is Similar To:
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4 offers $28.00–$220.00 USD
  • Used. Offer #1 priced at $220.00 + $15.00 shipping estimate = $235.00* total. Sold as a used OEM carburetor. Carburetor was disassembled, cleaned, and inspected.+$15.00 shipping
  • Used. Offer #2 priced at $28.00 + $8.60 shipping estimate = $36.60* total. Fits most 93-98' Yamaha YFM350 Big Bear 2wd and 4wd drive models that use this type of carb. OEM Mikuni float bowl chamber.+$8.60 shipping
  • Used. Offer #3 priced at $55.00 + $8.60 shipping estimate = $63.60* total. OEM Mikuni carb throttle shaft/flap and linkage/slide lift arm assembly.+$8.60 shipping
  • Used. Offer #4 priced at $18.00 + $8.60 shipping estimate = $26.60* total. OEM Mikuni float with pin and needle.+$8.60 shipping

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