BFO ERDVG2 Carburetor Big

( Brand: Bfo ), ( Manufacturer Part Number: ERDVG2 ), ( 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 Assembly Yamaha Big fits BEAR YFM400 400 2000–2012

The **BFO ERDVG2 Carburetor** is a meticulously engineered, high-performance replacement for the stock carburetor found on Yamaha s legendary **Big Bear 400 (YFM400) models**, spanning production years from **2000 to 2012**. Designed to deliver unmatched throttle response, improved fuel efficiency, and a more aggressive power curve, this aftermarket carburetor is a game-changer for riders seeking to unlock the full potential of their classic off-road machine. Crafted from durable materials and precision-machined components, the ERDVG2 features a **larger venturi bore** and **optimized jet sizing**, allowing for better air-fuel mixture control under varying load conditions whether you're carving through rough terrain, hitting high-speed jumps, or cruising on the trail. Its **upgraded needle and jet assembly** ensures smoother acceleration and reduced hesitation, while the **enhanced float bowl design** minimizes fuel sloshing and improves reliability in extreme angles. Built to withstand the demands of aggressive riding, the BFO carburetor is compatible with both **stock and modified engines**, making it an ideal choice for both stock restorations and high-performance builds. Whether you're a serious enduro rider, a trail enthusiast, or a purist looking to preserve the soul of your Big Bear while gaining a competitive edge, the ERDVG2 offers a seamless blend of performance and durability, ensuring your Yamaha runs with the precision and power it was originally intended to deliver. With a reputation for reliability and a track record of outperforming OEM components, this carburetor is not just an upgrade it s a statement of intent for riders who refuse to compromise on performance.

### **Pros and Cons of Buying a BFO ERDVG2 Carburetor for a Yamaha Big Bear 400 (YFM400, 2000 2012)**

1. **Performance Gains** The ERDVG2 is a high-performance carburetor designed for increased airflow and fuel delivery, which can improve throttle response, top-end power, and overall engine efficiency. It is optimized for larger displacement engines like the Big Bear 400, making it a popular choice for enthusiasts looking to enhance stock performance.

2. **Better Fuel Economy (Under Certain Conditions)** When properly tuned, a well-maintained ERDVG2 can improve fuel efficiency by ensuring optimal air-fuel mixture, especially in high-RPM scenarios where stock carbs may struggle.

3. **Durability and Reliability** BFO (Big Four Of Japan) is a well-regarded brand in the aftermarket, known for producing durable carburetors with high-quality materials. The ERDVG2 is built to handle the demands of high-performance applications, reducing the risk of premature failure compared to stock or poorly made aftermarket options.

4. **Compatibility with Modifications** If you plan to add other performance upgrades (e.g., headers, exhaust, or camshafts), the ERDVG2 can better support those changes by providing the necessary fuel flow without choking the engine.

5. **Easier Tuning and Adjustability** Unlike stock carbs, which are often limited in adjustability, the ERDVG2 offers more precise control over idle mixture, jet sizing, and throttle response. This allows for fine-tuning to match your riding style or specific engine modifications.

6. **Reduced Carbon Buildup** A properly functioning carburetor helps prevent excessive carbon deposits on valves and pistons, which can occur with stock carbs running rich or inefficiently.

7. **Resale Value for Modified Bikes** If you plan to sell the bike later, a well-maintained ERDVG2 can appeal to buyers looking for performance-oriented upgrades, potentially increasing resale value.

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1. **Higher Upfront Cost** The ERDVG2 is more expensive than stock carbs or basic aftermarket alternatives. Installation may also require additional parts (e.g., new jets, gaskets, or fuel line upgrades), adding to the cost.

2. **Requires Professional Installation and Tuning** Unlike stock carbs, which are relatively straightforward to install, the ERDVG2 demands careful setup. Improper installation (e.g., wrong jet sizes, incorrect idle mixture) can lead to poor performance, stalling, or even engine damage. Many riders opt for a professional tune-up or carb specialist to ensure proper setup.

3. **Fuel System Upgrades May Be Necessary** The ERDVG2 draws more fuel than stock carbs, so you may need to upgrade your fuel pump, fuel line, or even the fuel tank capacity to avoid running dry under hard acceleration. This adds to the overall cost and complexity.

4. **Potential for Overcomplicating the Bike** If you re not heavily modifying the bike, the ERDVG2 might feel like overkill. Stock carbs can last decades with basic maintenance, and for casual riders, the performance gains may not justify the expense and effort.

5. **Maintenance Requirements** Carburetors, even high-quality ones like the ERDVG2, require regular cleaning, jet inspections, and adjustments. Neglecting maintenance can lead to poor performance, fouled spark plugs, or even carburetor failure.

6. **Learning Curve for Tuning** Unlike stock carbs, which run on a fixed setup, the ERDVG2 requires understanding how to adjust jets, idle screws, and throttle response. Mistakes in tuning can result in rough idling, hesitation, or poor fuel economy.

7. **Potential for Voiding Warranty (If Applicable)** If your bike is still under manufacturer warranty, installing an aftermarket carburetor may void coverage, especially if the modification is deemed "significant."

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The **BFO ERDVG2 carburetor is an excellent choice for Yamaha Big Bear 400 owners who are serious about performance tuning, plan to add other modifications, or want a more refined and responsive engine.** It delivers noticeable power gains, better throttle response, and improved reliability compared to stock carbs. However, it is **not a "set-and-forget" upgrade** it requires proper installation, tuning, and maintenance to perform optimally.

For **casual riders or those who prefer minimal modifications**, the cost and effort may not be justified, and stock carbs (with regular cleaning) could suffice. On the other hand, for **enthusiasts who want to push their Big Bear s limits**, the ERDVG2 is a worthwhile investment if budget and time for tuning are available.

- **If you re committed to performance upgrades:** Proceed with the ERDVG2, but **budget for professional installation and tuning** to avoid common pitfalls. Pair it with complementary upgrades (e.g., headers, exhaust, or a performance air filter) for the best results.

- **If you want reliability without complexity:** Consider a **high-quality stock replacement carb** (e.g., a remanufactured Yamaha carb) or a **simpler aftermarket option** (like a Mikuni or Keihin performance carb) that still offers improvements without the ERDVG2 s complexity.

- **If you re unsure:** Test-ride a Big Bear with an ERDVG2 (if possible) to experience the difference before committing. Alternatively, start with smaller upgrades (e.g., headers or a performance exhaust) and assess whether you want to invest further in carburetor tuning.

Ultimately, the ERDVG2 is a **strong performer for the right rider**, but it s not a "one-size-fits-all" solution. Proper preparation and tuning are key to maximizing its benefits.

Details:

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. Compatible price. Outpatient. 2004 - 2006, for Yamaha ATV Kodiak 400 2WD 4WD 2000 - 2003, 450 4x4 2003 - 2006, Wolverine 350 2x4 2006 -2009.

Specifications. Quick, Simple. 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. Oil, unplug the oil pipe.

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. 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. 2001 - 2007, for Yamaha Bruin 250 YFM 2005 - 2006, 350 2x4 4x4. Then you can load him into the car.

TITLE: Carburetor Assembly For Yamaha Big Bear 400 YFM400 2000 2012. If you paid Before Apr. For Yamaha Big Bear 250 2007 -2009, for 400 YFM 2x4 4x4. Fast Shipping.

Price match guarantee. 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. Finally, remove the throttle cable. Package included.

Guaranteed Fitment. Manufacturer. Always the correct part.

specifications carbthrotatv:

• for models: Yfm400, 400, Bear
• for makes: Yamaha
• for years: 2000-2012
• brand: Bfo
• mpn: Erdvg2
• 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

seller carbthrotatv:

• # reviews: 4178
• rating: 99.1%
• city: Rowland height, California

offer carbthrotatv:

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

returns carbthrotatv:

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

payments carbthrotatv:

• wallet: Google-pay
• credit card: Diners-club
• other

shipping carbthrotatv:

• transit: 3-7 Days
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard
• type: Fixed
• cost: $0.00

general carbthrotatv:

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

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