MAXPEEDINGRODS BH1YWI Carburetor Big Electric Choke Atv 4-STROKE

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: BH1YWI ), ( Air Filter Mount Inner Diameter: 1.81 ), ( Air Filter Mount Outer Diameter: 1.97 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Choke Type: Mechanical ), ( Compatible Make: For Yamaha ), ( Compatible Year: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987 ), ( Country Of Origin: China ), ( Drive Type: Electric Choke ), ( Engine Type: 4-stroke ), ( Features: With E-choke ), ( Fitment 1: For Yamaha Warrior 350 Yfm350x 1987-2004 ), ( Fitment 2: For Yamaha Big Bear 350 Yfm350fw 4x4 1996-1998 ), ( Fitment 3: For Yamaha Big Bear 350 Yfm350u 1996-1998 ), ( Fitment 4: For Yamaha Wolverine 350 Yfm350fx 4x4 1995 ), ( Fitment 5: For Yamaha Kodiak 400 Yfm400fw 4x4 1993-1998 ), ( Fitment Type: Direct Replacement ), ( Intake Side Inner Diameter: 1.42 ), ( Intake Side Outer Diameter: 1.57 ), ( Items Included: Mounting Hardware ), ( Machine Type: Atv ), ( Material: Aluminum ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Oe/oem Part Number: Yfm350 Carburetor, Carburetor, Carburettor, Carburetter, Carb, Carby ), ( Placement On Vehicle: Front ), ( Quantity: 1 Piece As Show In The Picture ), ( Type: Carburetor ), ( Universal Fitment: No )

Review MAXPEEDINGRODS Carburetor Yamaha Big 4-stroke Electric Choke Atv fits BEAR YFM350FW 350 4X4

The **Maxpeedingrods BH1YWI High-Performance Carburetor** is a meticulously engineered, aftermarket upgrade designed specifically for the Yamaha Big Bear 350 (YFM350FW) 4x4 ATV, delivering a dramatic enhancement in power, throttle response, and overall engine performance. Built to replace the stock carburetor with a more refined and aggressive tuning solution, this electric-choke carburetor features a precision-machined bore and optimized jet system that ensures a cleaner, more efficient fuel-air mixture for every revolution. The BH1YWI is crafted from high-grade materials, including a durable aluminum body and corrosion-resistant components, ensuring long-lasting reliability even under the most demanding off-road conditions. Its electric choke mechanism provides instant, consistent starting in cold weather, eliminating the frustration of manual choke adjustments and ensuring smooth, reliable ignition every time. Under the hood, the carburetor s enlarged venturi and precisely calibrated jets enhance airflow and fuel delivery, unlocking hidden power reserves in the Big Bear s 350cc four-stroke engine. Whether tackling rough terrain, towing heavy loads, or pushing the limits of acceleration, this carburetor transforms the stock Yamaha into a more responsive, spirited machine. Ideal for enthusiasts seeking a noticeable performance boost without the complexity of full engine rebuilds, the Maxpeedingrods BH1YWI is a straightforward yet high-impact solution for those who demand more from their ATV. With its easy installation and immediate performance gains, it stands as a premium choice for Yamaha Big Bear owners looking to elevate their riding experience.

### **Pros and Cons of buying a Maxpeedingrods BH1YWI Carburetor for the Yamaha Big Bear 350 YFM350FW (4x4, 4-Stroke, Electric Choke ATV)**

1. **Performance Enhancement** The Maxpeedingrods carburetor is designed to improve throttle response, power delivery, and overall engine performance compared to the stock carburetor. It can provide a noticeable increase in horsepower and torque, especially in off-road conditions where consistent power is crucial.

2. **Better Fuel Efficiency** A well-tuned carburetor can optimize fuel-air mixture, reducing fuel waste and potentially improving mileage, though this depends on proper setup and riding habits.

3. **Durability and Reliability** Maxpeedingrods products are known for their high-quality construction, often featuring stainless steel components and precise machining. This can lead to fewer clogs and longer-lasting performance compared to stock or cheaper aftermarket carburetors.

4. **Easier Maintenance** The design may simplify cleaning and adjustments compared to some stock carburetors, making it easier to maintain optimal performance over time.

5. **Compatibility with Modifications** If you plan to add other performance upgrades (e.g., headers, exhaust, or camshafts), this carburetor can integrate well with those modifications to maximize gains.

6. **Electric Choke Compatibility** Since your ATV has an electric choke, the Maxpeedingrods carburetor is designed to work seamlessly with it, avoiding issues that might arise with non-compatible aftermarket parts.

7. **Aftermarket Support** Maxpeedingrods offers tuning guides, support forums, and sometimes professional setup services, which can help ensure proper installation and calibration.

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1. **Cost** Aftermarket carburetors like this one are significantly more expensive than stock units. The price point may be a barrier for budget-conscious buyers, especially if other modifications are also needed.

2. **Learning Curve** Tuning a carburetor requires knowledge of fuel-air ratios, idle settings, and throttle response. If not properly adjusted, it can lead to poor performance, rough idling, or even engine damage. Beginners may need to invest time in learning or hire a professional tuner.

3. **Potential for Over-Performing** Without proper tuning, the carburetor could run too rich (flooding) or too lean (detonation), leading to reduced lifespan of the engine or exhaust system. This is especially risky if other parts (e.g., ignition or fuel system) are not upgraded accordingly.

4. **Warranty Void** Installing an aftermarket carburetor may void the manufacturer s warranty on your Yamaha ATV, leaving you responsible for any repairs if issues arise from the modification.

5. **Installation Complexity** While not overly difficult, installing a carburetor requires disassembling parts of the engine and throttle body. If you re not mechanically inclined, you may need to pay for professional installation, adding to the cost.

6. **Fuel Quality Dependence** High-performance carburetors can be sensitive to fuel quality. Using low-grade or contaminated fuel may cause clogging or performance issues more frequently than with a stock carburetor.

7. **Potential for Backfiring or Rough Idling** If not tuned correctly, the carburetor may cause the engine to run poorly at idle or under load, leading to a less enjoyable riding experience.

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The Maxpeedingrods BH1YWI carburetor is a solid choice for Yamaha Big Bear 350 owners looking to significantly boost performance, provided it is installed and tuned correctly. It offers tangible benefits in power, responsiveness, and durability, but it is not a "plug-and-play" solution. The cost and technical requirements make it more suited for experienced riders or those willing to invest time in learning or hiring a professional tuner.

If your primary goal is **reliability and longevity** with minimal hassle, a stock carburetor or a simpler aftermarket upgrade might suffice. However, if you re committed to **maximizing power and are prepared for the learning curve**, this carburetor is a worthwhile investment.

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- You are mechanically inclined or willing to learn how to tune a carburetor.

- You plan to pair it with other performance upgrades (e.g., headers, exhaust, or camshafts).

- You prioritize long-term durability and power gains over cost savings.

- You have access to high-quality fuel and are willing to maintain the carburetor properly.

- You want a simpler, lower-cost upgrade (e.g., a performance air filter or stock carburetor cleaning).

- You lack experience with carburetor tuning and cannot afford professional help.

- Your budget is tight, and you d rather allocate funds to other modifications first.

For best results, pair this carburetor with a **dynamic timing belt kit, high-flow air filter, and proper fuel** to ensure optimal performance. Always follow Maxpeedingrods tuning guidelines and consider consulting with a Yamaha specialist or performance tuner before installation.

Details:

One against the carb, other engine. Compatible model's. Quick, Simple. For Yamaha Warrior 350 YFM350X 1987 - 2004.

3.Is it ready to install and fully functional right out the box?, Yes if you adjust air/fuel mixture screw. . The fuel and air mixture is too rich if it has an excess of fuel, while lean there not enough. Carburetor For Yamaha Big Bear 350 YFM350FW 4X4 4-Stroke Electric Choke ATV Most.

This part including carburetor repair kits, in case you want to replace these components of future. 3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability. For Yamaha Big Bear 350 YFM350U 1996 - 1998. Introduction.

2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power. Therefore, our high quality carburetor is the perfect solution for appropriate ratio of air and fuel mixture finally provides a good engine performance. Package Contents. A carburetor is a device to mix air and fuel for internal combustion engines in the proper ratio.

1.Made of high quality aluminum alloy, add more horse power while maintaining near stock fuel mileage. For Yamaha Big Bear 350 YFM350FW 4X4 1996 - 1998. Choke Type:Manual. Manufacturer.

specifications carbthrotatv:

• for models: Yfm350fw, 350, 4x4, Bear
• for makes: Yamaha
• brand: Maxpeedingrods
• mpn: Bh1ywi
• air filter mount inner diameter: 1.81
• air filter mount outer diameter: 1.97
• california prop 65 warning: California Prop 65 Warning
• choke type: Mechanical
• compatible make: For Yamaha
• compatible year: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987
• country of origin: China
• drive type: Electric Choke
• engine type: 4-stroke
• features: With E-choke
• fitment 1: For Yamaha Warrior 350 Yfm350x 1987-2004
• fitment 2: For Yamaha Big Bear 350 Yfm350fw 4x4 1996-1998
• fitment 3: For Yamaha Big Bear 350 Yfm350u 1996-1998
• fitment 4: For Yamaha Wolverine 350 Yfm350fx 4x4 1995
• fitment 5: For Yamaha Kodiak 400 Yfm400fw 4x4 1993-1998
• fitment type: Direct Replacement
• intake side inner diameter: 1.42
• intake side outer diameter: 1.57
• items included: Mounting Hardware
• machine type: Atv
• material: Aluminum
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part
• oe/oem part number: Yfm350 Carburetor, Carburetor, Carburettor, Carburetter, Carb, Carby
• placement on vehicle: Front
• quantity: 1 Piece As Show In The Picture
• type: Carburetor
• universal fitment: No

returns carbthrotatv:

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

seller carbthrotatv:

• rating: 99.7%
• city: Elk Grove Village, Illinois
• # reviews: 9124

offer carbthrotatv:

• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• started: May 7, 2026

shipping carbthrotatv:

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

payments carbthrotatv:

• credit card: Visa
• other
• wallet: Paypal

general carbthrotatv:

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

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