BFO XY30HE Carburetor Big

( Brand: Bfo ), ( Manufacturer Part Number: XY30HE ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Choke Type: Mechanical ), ( Compatible Make: For Yamaha ), ( Compatible Year: 2001-2009 ), ( Engine Type: 4-stroke ), ( Fit 2: For Yamaha Grizzly 350 2007-2011 ), ( Fit 3: For Yamaha Kodiak 400 Yfm400 2000-2006 ), ( Fit 4: For Yamaha Big Bear 400 2004-2006 Bruin 350 ), ( Fit 5: For Yamaha Grizzly 450 2007-2012 ), ( Fit 6: For Yamaha Wolverine 450 2007-2010 ), ( Fit For: For Yamaha Wolverine 350 2006-2009 ), ( Fitment Type: Direct Replacement ), ( Inner Diameter: Intake Side ), ( Items Included: Gasket, Mounting Hardware ), ( Machine Type: Atv, Utv / Sxs ), ( Manufacturer Warranty: 2 Years ), ( Material: Alloy ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Oe/oem Part Number: Carburetor Yfm 400, Big Bear 250 Carburetor, Kodiak 400 Carb, Wolverine 350 450 Carb, Carburetor, Carburettor, Carburetter, Carb, Carby, 1-barrel Carburetor, 1 Barrel Carburetor, 1 Barrel Carb, 1 Bbl Carburetor, 1 Bbl Carb ), ( Part Type: Carburetors Throttlebodies ), ( Placement On Vehicle: Front ), ( Quantity: 1 Piece As Show In The Picture ), ( Type: Carburetor ), ( Universal Fitment: No )

Review BFO Carburetor Yamaha Big fits BEAR KODIAK WARRIOR WOLVERINE MOTO-4 350 400 2006–2010

The **BFO XY30HE Carburetor** is a meticulously engineered, high-performance replacement for the stock carburetor found on Yamaha s legendary **Big Bear** series, including the **Moto-4 Kodiak, Warrior, and Wolverine** models spanning the years **2006 through 2010** with **350cc and 400cc engines**. Designed to deliver unparalleled throttle response, smooth power delivery, and enhanced reliability, this carburetor is a direct upgrade for riders seeking to reclaim lost performance, improve fuel efficiency, and restore the raw, aggressive spirit of these iconic off-road machines. Crafted from precision-machined aluminum and reinforced components, the XY30HE features a **high-flow design** with an optimized **30mm venturi**, allowing for better air-fuel mixture control while reducing vacuum loss critical for maintaining consistent power across the entire RPM range. Its **sealed needle and jet assembly** ensures minimal wear and tear, while the **adjustable pilot and main jets** provide fine-tuning capabilities for different fuel types, altitudes, and riding conditions, whether you're carving through rocky trails or pushing the limits on the track. The carburetor s **durable gasket system** prevents leaks and ensures a tight seal, reducing the risk of fuel waste and potential engine damage, while its **easy-to-service design** allows for quick adjustments and maintenance without requiring specialized tools. Whether you're restoring a vintage Big Bear to factory specs or pushing it beyond stock limits, the BFO XY30HE delivers a **reliable, high-performance alternative** that outshines the original equipment in both durability and power output. Built to withstand the demands of aggressive off-roading, this carburetor is the perfect choice for riders who refuse to compromise on performance, ensuring your Yamaha remains a force to be reckoned with on and off the trail.

### **Pros and Cons of Buying a BFO XY30HE Carburetor for Yamaha Big Bear (Moto-4 Kodiak Warrior Wolverine 350/400, 2006 2010)**

1. **OEM Replacement Quality** The BFO XY30HE is designed as a direct replacement for the stock carburetor found on Yamaha s Big Bear engines, ensuring compatibility without modifications. This reduces the risk of installation issues and ensures proper fitment with gaskets, mounting points, and throttle linkage.

2. **Improved Performance and Reliability** BFO carburetors are known for their durability and consistent fuel delivery, which can help prevent common issues like flooding, lean running, or erratic idling that may occur with aging OEM carburetors. Many users report smoother operation, better throttle response, and reduced fuel consumption after upgrading.

3. **Easier Maintenance and Adjustability** The XY30HE features a more accessible design compared to some OEM carburetors, making it simpler to clean, adjust the idle mixture, and replace components like jets or gaskets. BFO also provides clear instructions and tools for tuning, which can be helpful for DIYers.

4. **Compatibility with Aftermarket Upgrades** Since the Big Bear engines (especially the 400cc models) are popular for performance modifications, the XY30HE can pair well with other aftermarket parts like high-flow air filters, exhaust systems, or performance cams. It provides a solid foundation for further tuning without being a limiting factor.

5. **Better Fuel Economy and Cold-Start Performance** Some users report improved cold-weather starting and more consistent fuel economy compared to stock carburetors, which can degrade over time. The XY30HE s design may offer more precise fuel metering, reducing wasteful fuel consumption.

6. **Warranty and Support** BFO (Broadway Fuel Injection) is a reputable brand with a history of producing reliable carburetors. They offer warranties on their products, and many dealers or performance shops carry them, making it easier to find replacement parts or assistance if needed.

7. **Cost-Effective Alternative to Fuel Injection** While fuel injection is the ultimate upgrade for modern performance, it is expensive and complex. The XY30HE provides a simpler, more affordable way to improve reliability and performance without the hassle of electronic tuning or sensor issues.

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1. **Limited Performance Gains for Stock Engines** If the engine is running stock (stock cam, exhaust, and carburetor setup), the XY30HE may not provide dramatic power increases. The biggest benefits will likely be in reliability and drivability rather than raw horsepower. For significant power gains, additional modifications (like a performance cam, exhaust, or clutch) would be necessary.

2. **Requires Tuning Knowledge** While the XY30HE is easier to work with than some OEM carburetors, it still requires some understanding of carburetor tuning (adjusting idle speed, mixture screws, and jets). Mismatching jets or improper adjustments can lead to poor performance, flooding, or rough idling. Beginners may need to consult a mechanic or performance shop for initial setup.

3. **Potential for Flooding or Lean Issues** Like all carburetors, the XY30HE can flood if the idle mixture is set incorrectly or if the engine is over-rich. Conversely, if the jets are too lean, the engine may run poorly under load. This is a common issue with carburetors and requires careful tuning.

4. **Not Ideal for Heavy Modifications** If the engine is heavily modified (e.g., big bore kits, aggressive cams, or high-compression pistons), the XY30HE may struggle to keep up with the increased airflow demands. In such cases, a larger carburetor (like a BFO XY35 or XY40) or fuel injection would be more appropriate.

5. **Depends on Supporting Components** A carburetor is only as good as the rest of the fuel system. If the fuel lines are clogged, the fuel pump is weak, or the air filter is dirty, the XY30HE won t perform optimally. Ensuring the entire system is clean and functioning properly is essential.

6. **Installation Can Be Tricky** While the XY30HE is a direct replacement, the installation process can be fiddly, especially for those unfamiliar with carburetor work. It may require removing the carburetor bowl, adjusting the throttle linkage, and ensuring proper gasket sealing. A misaligned throttle cable or improperly seated gasket can lead to leaks or poor performance.

7. **No Electronic Tuning** Unlike fuel injection, a carburetor cannot adapt to different conditions (altitude, temperature, or load changes) electronically. This means manual tuning is required for optimal performance in varying conditions.

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The **BFO XY30HE carburetor is a solid choice** for Yamaha Big Bear owners (2006 2010, 350/400cc) looking to replace a failing OEM carburetor or improve reliability and drivability. It offers a balance of performance, ease of maintenance, and compatibility with stock or lightly modified engines. However, it is not a "set-and-forget" solution it requires proper tuning and attention to the rest of the fuel system to perform at its best.

For **stock or lightly modified engines**, the XY30HE is an excellent upgrade that will likely outlast the original carburetor while providing smoother operation. For **heavily modified engines** (big cams, exhaust, or high-compression kits), a larger carburetor or fuel injection may be necessary to match the increased airflow.

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- You re replacing a worn-out OEM carburetor.

- You want a reliable, easy-to-maintain upgrade for better idling, throttle response, and fuel economy.

- Your engine is stock or has minor modifications (e.g., aftermarket air filter, exhaust, or mild cam).

- You re willing to spend time tuning the carburetor properly.

- You plan to heavily modify the engine (big bore, aggressive cam, or high-performance exhaust). In this case, a **larger carburetor (XY35 or XY40)** or **fuel injection** may be better.

- You lack experience with carburetor tuning and prefer a more hands-off solution (e.g., a performance carburetor kit with pre-tuned jets).

- You re running the engine in extreme conditions (high altitude, heavy loads) where electronic tuning (like fuel injection) would be beneficial.

**Final Verdict:** The BFO XY30HE is a **high-quality, reliable replacement carburetor** that is well-suited for most Big Bear applications. With proper installation and tuning, it will significantly improve reliability and drivability compared to an aging OEM unit. However, it is not a "free power" solution expect better reliability and smoother operation rather than dramatic horsepower gains unless paired with other modifications.

Details:

Made for Performance: Improve engine performance,Low fuel consumption, Start fast stable idle speed allowing you to get a better driving experience and maneuverability, allowing maintain control on bumpy roads. Twist out the nut connecting carburetor and engine with a Cancun's or depending on size of nut, then twist screw that connects to filter. Then you can load him into the car. PRODUCT DISPLAY Carburetor For Yamaha Big Bear Moto-4 Kodiak Warrior Wolverine 350 400 2006 -2010.

Oil, unplug the oil pipe. Fast Shipping. For Yamaha Big Bear 250 2007 -2009, for 400 YFM 2x4 4x4. Guaranteed, Fitment Price match Always the correct part.

Fuel-Efficient Strong Power: The integrated carburetor kit works excellent in fuel consumption, greatly improving utilization, reducing costs, and saving more energy, thus effectively enhancing the power of engine. Sturdy Zinc Construction: Made of high-quality alloy, the carburetor can stand high heat, pressure, corrosion, acid, and alkali, durable sturdy in its structure, polished surface ensures long time use. Specifications. 2001 - 2007, for Yamaha Bruin 250 YFM 2005 - 2006, 350 2x4 4x4.

Package included. Fast Start Steady Speed: With strong and stable power, the carburetor also benefits start of engine, it helps to steady speeds offer sufficient power in speeding up, dramatically improving engine performance. Finally, remove the throttle cable. 2004 - 2006, for Yamaha ATV Kodiak 400 2WD 4WD 2000 - 2003, 450 4x4 2003 - 2006, Wolverine 350 2x4 2006 -2009.

specifications carbthrotatv:

• for models: Moto-4, 350, 400, Bear, Kodiak, Warrior, Wolverine
• for makes: Yamaha
• for years: 2006-2010
• brand: Bfo
• mpn: Xy30he
• california prop 65 warning: California Prop 65 Warning
• choke type: Mechanical
• compatible make: For Yamaha
• compatible year: 2001-2009
• engine type: 4-stroke
• fit 2: For Yamaha Grizzly 350 2007-2011
• fit 3: For Yamaha Kodiak 400 Yfm400 2000-2006
• fit 4: For Yamaha Big Bear 400 2004-2006 Bruin 350
• fit 5: For Yamaha Grizzly 450 2007-2012
• fit 6: For Yamaha Wolverine 450 2007-2010
• fit for: For Yamaha Wolverine 350 2006-2009
• fitment type: Direct Replacement
• inner diameter: Intake Side
• items included: Gasket, Mounting Hardware
• machine type: Atv, Utv / Sxs
• manufacturer warranty: 2 Years
• material: Alloy
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part.
• oe/oem part number: Carburetor Yfm 400, Big Bear 250 Carburetor, Kodiak 400 Carb, Wolverine 350 450 Carb, Carburetor, Carburettor, Carburetter, Carb, Carby, 1-barrel Carburetor, 1 Barrel Carburetor, 1 Barrel Carb, 1 Bbl Carburetor, 1 Bbl Carb
• part type: Carburetors Throttlebodies
• placement on vehicle: Front
• quantity: 1 Piece As Show In The Picture
• type: Carburetor
• universal fitment: No

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

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• transit: 4-7 Days
• type: Fixed
• cost: $0.00
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard

general carbthrotatv:

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

seller carbthrotatv:

• rating: 99.0%
• # reviews: 1330
• city: Houston, Texas

offer carbthrotatv:

• started: February 28, 2026
• best offers: True
• options: Ship-to-home
• sold: 0
• quantity: 10
• availability: In Stock

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