BFO XVE4SB Carburetor

( Brand: Bfo ), ( Manufacturer Part Number: XVE4SB ), ( Air Filter Mount Inner Diameter: 55mm ), ( Air Filter Mount Outer Diameter: 58mm ), ( Bundle Description: Carburetor For Polaris Base Cover Rubber Ring Filter Screws ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Choke Type: Mechanical ), ( Custom Bundle: Yes ), ( Engine Type: 4-stroke ), ( Fitment Type: Direct Replacement ), ( Intake Side Inner Diameter: 40mm ), ( Intake Side Outer Diameter: 46mm ), ( Items Included: Gasket, Mounting Hardware, O-rings ), ( Machine Type: Atv ), ( Manufacturer Warranty: 2 Years ), ( Material: Alloy, Aluminum ), ( Mounting Flange Type: Bolt On ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Oe/oem Part Number: Carburetor, Carburettor, Carburetter, Carb, Carby ), ( Part Type: Carburetors Throttlebodies ), ( Quantity: 1 Piece As Show In The Picture ), ( Surface Finish: Brand New ), ( Type: Carburetor ), ( Universal Fitment: No ), ( Country Of Origin: China )

Review BFO New Carburetor Polaris fits SPORTSMAN HO TOURING 500 4X4 2011–2013

The **BFO XVE4SB carburetor** is a meticulously engineered, high-performance replacement designed specifically for the **Polaris Sportsman 500 4x4 HO Touring models from 2011 through 2013**, ensuring optimal throttle response, fuel efficiency, and reliability for off-road adventures. Engineered to meet the demanding needs of modern ATV enthusiasts, this carburetor features a **precision-machined body** constructed from high-grade aluminum, providing both durability and lightweight performance to minimize engine strain while maximizing power output. The **XVE4SB** incorporates a **smooth-bore needle and jet system**, allowing for fine-tuned adjustments to idle, low-speed, and high-speed performance, ensuring seamless transitions between throttle inputs for a more responsive ride. Its **sealed gasket design** prevents fuel leaks and maintains consistent vacuum levels, reducing the risk of carburetor flooding or hesitation, even under heavy loads or steep inclines. The **easy-to-access adjustment screws** including the idle mixture, idle speed, and high-speed screw enable riders to fine-tune the carburetor to match fuel type, terrain, and personal driving preferences without requiring specialized tools. Built to withstand the rigors of frequent off-road use, this carburetor is compatible with **Polaris s HO (High Output) engine configuration**, delivering enhanced torque and acceleration while maintaining fuel economy. Whether tackling rugged trails, towing heavy loads, or cruising on paved roads, the **BFO XVE4SB** ensures a consistent, powerful, and dependable performance, making it an ideal upgrade for those seeking to elevate their Sportsman s capabilities without compromising on reliability.

### **Pros and Cons of Buying a BFO XVE4SB Carburetor for a Polaris Sportsman 500 4x4 HO Touring (2011 2013)**

1. **Improved Performance** The XVE4SB is a high-performance carburetor designed for better throttle response, smoother acceleration, and increased power output compared to the stock carburetor. This can enhance the overall driving experience, especially in off-road conditions where quick throttle adjustments are beneficial.

2. **Better Fuel Efficiency (Under Certain Conditions)** While carburetors are generally less fuel-efficient than modern fuel-injected systems, a well-tuned XVE4SB can provide more consistent fuel delivery, reducing lean-out conditions that waste fuel. However, this depends heavily on proper setup and maintenance.

3. **Easier Maintenance Than Fuel Injection** Carburetors are simpler to service than electronic fuel injection systems. You can clean, rebuild, or replace parts (like jets and needles) without needing specialized diagnostic tools or software updates.

4. **Compatibility with Modifications** If you ve added performance upgrades like a bigger exhaust, turbocharger, or supercharger, a high-performance carburetor like the XVE4SB can better handle the increased airflow and power demands.

5. **Cost-Effective Upgrade** Compared to full fuel injection conversions or major engine modifications, replacing the carburetor is a relatively inexpensive performance upgrade. The XVE4SB is priced lower than aftermarket fuel injection kits while still offering noticeable improvements.

6. **Proven Reliability** BFO (Briggs & Stratton Outboard) is a well-known brand in carburetor manufacturing, and the XVE4SB has a reputation for durability and consistent performance in similar applications (e.g., go-karts, ATVs, and small engines).

7. **Off-Road Suitability** The Sportsman 500 HO Touring benefits from a carburetor that can handle sudden throttle changes and varying terrain without stumbling or hesitation, which the XVE4SB is capable of with proper tuning.

---

1. **Requires Tuning and Adjustment** Unlike fuel injection, carburetors are mechanical and require manual tuning to optimize performance. This includes adjusting idle speed, mixture screws, and float levels. Poor tuning can lead to poor fuel economy, rough idling, or even engine damage from running too lean or rich.

2. **Less Reliable in Extreme Conditions** Carburetors are more susceptible to clogging from dirt, water, or fuel impurities compared to fuel-injected systems. In dusty or wet off-road conditions, they may require more frequent cleaning or maintenance.

3. **Potential for Fuel Waste** Carburetors can be less efficient than fuel injection, especially if not properly maintained. They may idle poorly, run hot, or consume more fuel than necessary if the mixture isn t balanced correctly.

4. **Limited Longevity Compared to Fuel Injection** While durable, carburetors wear out over time due to moving parts (e.g., diaphragms, needles, and jets). They may require more frequent rebuilds or replacements than a fuel-injected system, which has fewer wear points.

5. **Not Ideal for High-Speed or Heavy Loads** The XVE4SB is a mid-range performance carburetor and may struggle to keep up with extreme power modifications (e.g., forced induction) without additional support (e.g., upgraded fuel pump, larger air filter, or exhaust). Stock engines may see adequate gains, but heavily modified engines could outgrow it.

6. **Learning Curve for Owners** If you re not familiar with carburetor tuning, the process can be frustrating. You ll need to understand how to adjust the idle mixture, pilot and main jets, and float height to avoid common issues like flooding, stalling, or poor acceleration.

7. **Environmental Concerns** Carburetors emit more unburned hydrocarbons and pollutants than modern fuel-injected engines, which may be a consideration if you re environmentally conscious or subject to emissions regulations.

---

The **BFO XVE4SB carburetor is a solid upgrade for a 2011 2013 Polaris Sportsman 500 HO Touring**, particularly if you re looking for a cost-effective way to improve throttle response and power without a full fuel injection conversion. It s well-suited for stock or lightly modified engines and offers the advantage of simplicity and ease of maintenance. However, it requires **proper tuning and regular upkeep** to avoid performance issues, and it may not be as reliable or efficient as fuel injection in extreme conditions.

If you re comfortable with carburetor maintenance and tuning, the XVE4SB is a **good choice for enhancing performance and off-road capability**. If you prefer a more hands-off solution or plan to heavily modify the engine, a fuel-injected system might be a better long-term investment.

- You want a noticeable performance boost without a major overhaul.

- You re willing to learn or hire someone to tune the carburetor properly.

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

- You prefer the simplicity of carburetor maintenance over fuel injection.

- You re not comfortable with carburetor tuning or maintenance.

- You plan to add significant power (e.g., turbocharging, large displacement) without supporting upgrades.

- You prioritize fuel efficiency and emissions compliance over raw performance.

- You d rather invest in a fuel-injected system for long-term reliability.

For best results, pair the XVE4SB with a **high-quality air filter, proper fuel stabilizer, and regular carburetor cleaning**. Consider consulting a performance specialist or carburetor tuner to ensure optimal setup.

Details:

For Polaris Sportsman 500 4X4 HO 2001 -2005, RSE 2001, DUSE 2010 -2012. Package Content. 4.100% tested For reliability and performance, backed by satisfying after-sales service. Specifications.

3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability. 2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power. PRODUCT DISPLAY New Carburetor for Polaris Sportsman 500 4X4 HO Touring 2011 2012 2013 Fast Shipping. Materia:Aluminum Alloy, Vehicle Service Type:ATV, Choke Type:Manual choke, Barrel Count:1, Mounting Flange Type: Bolt On, Fuel Gasoline, Intake Side Inner Diameter: 40mm, Outer 46mm, Air Filter 55mm, 58mm.

1.Made of high quality zinc/aluminum alloy, add more Horse power while maintaining near stock fuel mileage. Manufacturer Price match, guarantee. To ensure correct purchase, please compare carburetor against picture before you purchase. Please clean up the oil channels and air filters as well use fuel before installing carburetors.

Guaranteed Fitment Always the, correct part.

specifications carbthrotatv:

• for models: Ho, Touring, 500, 4x4, Sportsman
• for makes: Polaris
• for years: 2011-2013
• brand: Bfo
• mpn: Xve4sb
• air filter mount inner diameter: 55mm
• air filter mount outer diameter: 58mm
• bundle description: Carburetor For Polaris Base Cover Rubber Ring Filter Screws
• california prop 65 warning: California Prop 65 Warning
• choke type: Mechanical
• custom bundle: Yes
• engine type: 4-stroke
• fitment type: Direct Replacement
• intake side inner diameter: 40mm
• intake side outer diameter: 46mm
• items included: Gasket, Mounting Hardware, O-rings
• machine type: Atv
• manufacturer warranty: 2 Years
• material: Alloy, Aluminum
• mounting flange type: Bolt On
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part.
• oe/oem part number: Carburetor, Carburettor, Carburetter, Carb, Carby
• part type: Carburetors Throttlebodies
• quantity: 1 Piece As Show In The Picture
• surface finish: Brand New
• type: Carburetor
• universal fitment: No
• country of origin: China

payments carbthrotatv:

• other
• wallet: Google-pay
• credit card: Visa

offer carbthrotatv:

• best offers: True
• quantity: 4
• sold: 0
• availability: In Stock
• started: June 8, 2026
• options: Ship-to-home

general carbthrotatv:

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

seller carbthrotatv:

• # reviews: 7304
• city: Houston, Texas
• rating: 99.8%

returns carbthrotatv:

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

shipping carbthrotatv:

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

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