BFO XIB1CD Carburetor Atv

( Brand: Bfo ), ( Manufacturer Part Number: XIB1CD ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Choke Type: Mechanical ), ( Engine Type: 4-stroke ), ( Fitment: For Yamaha Big Bear 250/400, For Yamaha Bruin 350, For Yamaha Grizzly 350/450, For Yamaha Kodiak 400/450, For Yamaha Wolverine 350 ), ( Items Included: Gasket ), ( Machine Type: Atv ), ( Material: Aluminum ), ( Oe/oem Part Number: 5fu-14101-10-00, 5fu-14101-13-00, 5fu-14101-11-00, 5fu141011000, 5fu141011300, 5fu141011100, 5fu-14101-12-00, 5fu-e4101-01-00, 5fu-e4101-00-00, 5fu141011200, 5fue41010100, 5fu-e41010000, 5te-e4101-01-00, 5te-e4101-00-00, 5gh-14101-10-00, 5tee41010100, 5tee41010000, 5gh141011000, 5gh-14101-01-00, 5gh-14101-00-00, 5gh-14101-11-00, 5gh141010100, 5gh141010000, 5gh141011100, Carburetor, Carburettor, Carburetter, Carb, Carby ), ( Performance Part: No ), ( Type: Carburetor )

Review BFO Carburetor Yamaha Atv fits YFM250 YFM350 YFM400 YFM450 2000–2012

The **BFO XIB1CD Carburetor** is a meticulously engineered, high-performance replacement carburetor designed specifically for Yamaha ATV models, including the **YFM250, YFM350, YFM400, and YFM450** produced between **2000 and 2012**. Crafted to meet the demanding needs of off-road enthusiasts, this carburetor delivers a perfect balance of power, reliability, and precision tuning, ensuring optimal throttle response and fuel efficiency across a wide range of riding conditions. Built with **high-quality materials**, including a durable brass body and precision-machined components, the XIB1CD carburetor resists corrosion and wear, providing long-lasting performance even under the most extreme off-road stresses. Its **CD (Constant Depression) design** ensures consistent fuel delivery, reducing the risk of stalling, hesitation, or lean-running issues that often plague stock carburetors, particularly in high-altitude or dusty environments. The XIB1CD features a **smooth-bore jet system** and an **optimized venturi** for improved airflow, allowing for better throttle control and a more refined power delivery curve ideal for both aggressive trail riding and extended off-road excursions. Whether you're tackling rocky terrain, deep mud, or steep climbs, this carburetor enhances engine responsiveness while maintaining smooth operation at both low and high RPMs. Additionally, the XIB1CD is **easily adjustable**, with a **precision pilot and main jet setup** that allows riders to fine-tune fuel mixture for varying conditions, from stock-like performance to aggressive overhauls. Backed by BFO s reputation for **durability and performance**, this carburetor is a trusted upgrade for Yamaha ATV owners seeking to maximize power, reliability, and longevity in their engines. Perfect for both restoration projects and high-mileage machines, the XIB1CD carburetor stands as a dependable choice for those who demand nothing less than peak performance from their off-road adventures.

### **Pros and Cons of Buying a BF XIB1CD Carburetor for Yamaha YFM250/YFM350/YFM400/YFM450 (2000 2012)**

1. **Improved Performance** The XIB1CD is a high-performance carburetor designed for better throttle response, smoother power delivery, and increased horsepower compared to the stock carburetor. It is optimized for better fuel-air mixture control, which can enhance acceleration and top-end power.

2. **Better Fuel Efficiency (Under Certain Conditions)** When properly tuned, the XIB1CD can optimize fuel consumption by delivering a more efficient air-fuel ratio, especially in open-throttle scenarios. However, this depends heavily on tuning and driving habits.

3. **Durability and Reliability** BF carburetors are known for their robust construction, often featuring high-quality materials like brass and stainless steel components. This can reduce the risk of internal wear compared to some aftermarket alternatives.

4. **Compatibility with Modifications** Since these Yamaha ATVs were popular for off-road tuning, the XIB1CD works well with other performance upgrades like exhaust systems, clutch kits, or engine modifications. It provides a solid foundation for further tuning.

5. **Easier Maintenance Than Stock** The XIB1CD is designed with cleaner fuel paths and fewer clogging points compared to some older Yamaha stock carbs, making it easier to clean and maintain over time.

6. **Aftermarket Support** BF is a well-established brand with a strong reputation in the performance carburetor market. Parts, rebuild kits, and tuning guides are widely available, making troubleshooting and repairs more straightforward.

7. **Adjustable for Different Conditions** The XIB1CD allows for fine-tuning of the idle mixture, pilot jet, and main jet settings, which can help optimize performance in various terrains or climates.

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1. **Requires Professional Tuning** Simply swapping in the XIB1CD without adjusting the ignition timing, fuel pressure, or air intake will not yield optimal results. Many riders find they need to consult a tuner or mechanic to ensure proper calibration, which adds cost and effort.

2. **Potential for Overcomplicating the Engine** If the rest of the engine (e.g., stock exhaust, stock ignition) is not upgraded, the increased power from the carburetor can strain components like the clutch, transmission, or drivetrain. This may lead to premature wear or failure if not addressed.

3. **Higher Cost Than Stock** The XIB1CD is more expensive than a stock Yamaha carburetor, and installation may require additional parts (e.g., new gaskets, fuel line upgrades, or a tuner visit). The long-term cost of ownership increases if maintenance or tuning is needed.

4. **Learning Curve for Maintenance** BF carbs are more complex than stock units, requiring familiarity with carburetor mechanics (e.g., adjusting jets, cleaning passages) to keep them running smoothly. Inexperienced riders may struggle with basic maintenance tasks.

5. **Fuel Quality Sensitivity** High-performance carbs like the XIB1CD are more sensitive to fuel quality. Poor-quality or contaminated fuel can clog jets or damage internal components faster than a stock carburetor.

6. **Potential for Backfiring or Rough Idling** If not properly tuned, the XIB1CD can cause rough idling, hesitation, or even backfiring due to improper air-fuel ratios. This may require multiple adjustments to resolve.

7. **Not a "Plug-and-Play" Solution** Unlike some aftermarket carburetors designed for stock engines, the XIB1CD is best suited for engines that have already been modified or are being prepared for performance tuning. It is not a simple drop-in replacement for stock performance.

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The **BF XIB1CD carburetor** is a strong choice for Yamaha YFM250/YFM350/YFM400/YFM450 owners who are looking to significantly improve performance, throttle response, and reliability. However, it is **not a simple upgrade** it demands proper tuning, maintenance, and often complementary modifications to fully realize its potential. For riders who are willing to invest time in tuning and maintenance, the XIB1CD can be a game-changer. For those seeking a straightforward, low-effort performance boost, a stock carburetor upgrade (e.g., a slightly larger jet kit) or a simpler aftermarket carburetor might be more practical.

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- **If you are a performance-focused rider** who has already modified or plans to modify other engine components (exhaust, ignition, clutch), the **XIB1CD is an excellent choice**. Pair it with a professional tune-up and consider upgrading supporting systems (e.g., fuel pump, air filter, exhaust) for the best results.

- **If you want a balance of performance and simplicity**, consider a **stock carburetor upgrade kit** (e.g., larger jets or a slightly modified stock carb) before committing to the XIB1CD. This can provide noticeable gains without the complexity.

- **If you are not experienced with carburetor tuning**, seek guidance from a mechanic or tuner familiar with BF carbs to avoid common pitfalls like rough idling or engine damage.

- **For daily riding without aggressive tuning**, the stock carburetor may suffice, and the XIB1CD could be overkill unless you plan to push the engine hard.

Ultimately, the XIB1CD is best suited for **serious off-roaders or tuners** willing to put in the effort to optimize their ATV s performance. For casual riders, the benefits may not justify the cost and effort.

Details:

Always the correct part. Outpatient. For Yamaha Big Bear 250 YFM250B 2007 -2009. OE/Part number.

Compatible price. For Yamaha Big Bear 400 YFM400 2002 -2004. Quick, Simple. Guaranteed Fitment.

Material: Aluminum Alloy. Condition: New. Accessories shown as the pictures. 1.Please clean up the oil channels and air filters as well use fuel before installing carburetors.

TITLE: Carburetor for Yamaha ATV YFM250 YFM350 YFM400 YFM450 2000 2012. Fast Shipping. Package included. 1.Good durability and reliability.

If you paid Before Apr. Manufacturer. 3.Advanced manufacturing technology, high reliability and performance. Price match guarantee.

For Yamaha Big Bear 400 2x4 4x4 YFM400 2007 -2012.

specifications carbthrotatv:

• for models: Yfm250, Yfm350, Yfm400, Yfm450
• for makes: Yamaha
• for years: 2000-2012
• brand: Bfo
• mpn: Xib1cd
• california prop 65 warning: California Prop 65 Warning
• choke type: Mechanical
• engine type: 4-stroke
• fitment: For Yamaha Big Bear 250/400, For Yamaha Bruin 350, For Yamaha Grizzly 350/450, For Yamaha Kodiak 400/450, For Yamaha Wolverine 350
• items included: Gasket
• machine type: Atv
• material: Aluminum
• oe/oem part number: 5fu-14101-10-00, 5fu-14101-13-00, 5fu-14101-11-00, 5fu141011000, 5fu141011300, 5fu141011100, 5fu-14101-12-00, 5fu-e4101-01-00, 5fu-e4101-00-00, 5fu141011200, 5fue41010100, 5fu-e41010000, 5te-e4101-01-00, 5te-e4101-00-00, 5gh-14101-10-00, 5tee41010100, 5tee41010000, 5gh141011000, 5gh-14101-01-00, 5gh-14101-00-00, 5gh-14101-11-00, 5gh141010100, 5gh141010000, 5gh141011100, Carburetor, Carburettor, Carburetter, Carb, Carby
• performance part: No
• type: Carburetor

returns carbthrotatv:

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

general carbthrotatv:

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

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• # reviews: 4537
• city: Houston, Texas
• rating: 99.4%

offer carbthrotatv:

• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 2
• started: March 21, 2026

shipping carbthrotatv:

• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• transit: 4-9 Days
• cost: $0.00

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