MAXPEEDINGRODS 7B38DS Carburetor Big Electric Choke Atv 4-STROKE

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 7B38DS ), ( 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 ), ( 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 7B38DS Carburetor** is a meticulously engineered, high-performance upgrade designed specifically for the Yamaha Big Bear 350 (YFM350FW) 4x4 ATV, delivering a seamless blend of power, reliability, and precision tuning for riders demanding more from their off-road adventures. This aftermarket carburetor replaces the stock unit with a robust, high-flow design optimized for the 4-stroke engine s aggressive throttle demands, ensuring a cleaner burn, improved acceleration, and enhanced throttle response even under the most demanding conditions. Crafted from durable materials, the 7B38DS features a precision-machined bore and advanced internal components, including a refined jetter system and a fully electric choke mechanism for effortless cold starts. The electric choke eliminates the hassle of manual priming, allowing for quick, consistent ignition even in damp or cold environments, while the upgraded needle and jet assembly fine-tunes fuel delivery for optimal power output and fuel efficiency. Whether tackling rough terrain, towing heavy loads, or pushing the limits of speed, this carburetor ensures a smoother, more responsive ride with reduced hesitation and improved engine longevity. Backed by Maxpeedingrods reputation for quality and performance, this upgrade is ideal for ATV enthusiasts looking to maximize their Big Bear s potential without compromising on durability or ease of installation.

### Pros and Cons of buying a Maxpeedingrods 7B38DS Carburetor for the Yamaha Big Bear 350 YFM350FW 4x4 ATV

1. **Performance Enhancement** The 7B38DS carburetor is designed to improve throttle response and power output compared to the stock carburetor. It features a larger bore and optimized airflow, which can make the ATV feel more responsive, especially in acceleration and top-end power.

2. **Better Fuel Efficiency (Under Certain Conditions)** Some riders report improved fuel economy when running a properly tuned carburetor, particularly if the stock carb is running rich or inefficiently. However, this depends heavily on proper tuning and adjustments.

3. **Easier Cold Starts** The electric choke version simplifies starting in cold weather, as it eliminates the need to manually operate a choke lever. This is particularly useful for riders who frequently operate the ATV in cooler conditions.

4. **Compatibility with Modifications** If you plan to add other performance upgrades (such as a high-flow air filter, exhaust system, or clutch kit), the 7B38DS carburetor can better support those modifications without restricting airflow.

5. **Durability and Reliability** Maxpeedingrods is known for producing high-quality aftermarket carburetors that are built to last, especially when properly maintained. The 7B38DS is designed to handle the demands of a 350cc 4-stroke engine.

6. **Easier Maintenance** The electric choke reduces wear on mechanical choke components, which can fail over time. Additionally, the carburetor s design may make it easier to clean and adjust compared to some stock units.

7. **Aftermarket Support** Since this is a popular carburetor for Yamaha ATVs, there is a wide availability of replacement parts, tuning guides, and community support for troubleshooting.

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1. **Requires Professional Tuning** Simply swapping in a larger carburetor without adjusting the fuel mixture can lead to poor performance, fouled spark plugs, or even engine damage. Proper tuning (using a scan tool or manual adjustments) is essential to avoid running too lean or too rich.

2. **Potential for Increased Fuel Consumption** If not tuned correctly, the larger carburetor can cause the engine to run lean, leading to higher fuel burn and potential overheating. This is especially true if the stock fuel system (fuel pump, lines, or tank) is not adequate for the increased airflow.

3. **Electric Choke Limitations** While convenient, the electric choke may not be as precise as a manual choke in very cold conditions. Some riders prefer the ability to fine-tune choke operation manually, especially in extreme temperatures.

4. **Cost of Installation and Tuning** Beyond the carburetor itself, you may need to budget for labor (if not installing it yourself), a scan tool for tuning, and possibly additional modifications (such as a fuel pump upgrade or upgraded fuel lines) to support the carburetor.

5. **Learning Curve** If you re not familiar with carburetor tuning, the process can be intimidating. Misadjustments can lead to rough idling, stalling, or reduced power, so patience and research are required.

6. **Potential for Voiding Warranty** If your ATV is still under manufacturer warranty, installing an aftermarket carburetor may void coverage, especially if the engine is modified.

7. **Not a Guaranteed Power Gain** While many riders report noticeable improvements, results vary based on the engine s condition, existing modifications, and tuning. Some may not see significant gains if the rest of the drivetrain is not optimized.

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The Maxpeedingrods 7B38DS carburetor is a solid choice for riders looking to enhance the performance of their Yamaha Big Bear 350 YFM350FW, particularly if they plan to add other modifications. Its electric choke makes cold starts easier, and its larger bore can improve throttle response and power. However, it is not a "plug-and-play" solution proper tuning is critical to avoid issues like fuel inefficiency or engine damage.

If you re mechanically inclined and willing to invest time in tuning, this carburetor can be a worthwhile upgrade. For those who prefer simplicity or lack experience with carburetor adjustments, a stock carburetor or a less aggressive aftermarket option might be safer.

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- **If you want performance and are comfortable with tuning:** Proceed with the Maxpeedingrods 7B38DS, but budget for a scan tool (like a Snap-on or OTC) and invest time in learning how to tune it properly. Consider upgrading supporting components (fuel pump, lines, air filter) to ensure optimal performance.

- **If you want reliability and minimal hassle:** Stick with the stock carburetor or consider a less aggressive aftermarket option (such as a slightly larger but easier-to-tune carburetor) if you re not planning major modifications.

- **If you frequently ride in cold weather:** The electric choke is a nice feature, but ensure you understand how to adjust the choke settings for different temperatures.

Ultimately, the best choice depends on your riding style, mechanical experience, and willingness to invest in tuning. Always research thoroughly and consider consulting with experienced ATV tuners before making the swap.

Details:

1.Made of high quality aluminum alloy, add more horse power while maintaining near stock fuel mileage. 3.Is it ready to install and fully functional right out the box?, Yes if you adjust air/fuel mixture screw. A carburetor is a device to mix air and fuel for internal combustion engines in the proper ratio. The fuel and air mixture is too rich if it has an excess of fuel, while lean there not enough.

Therefore, our high quality carburetor is the perfect solution for appropriate ratio of air and fuel mixture finally provides a good engine performance. Quick, Simple. Choke Type:Manual. 3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability.

Compatible model's. Package Contents. Introduction. Carburetor For Yamaha Big Bear 350 YFM350FW 4X4 4-Stroke Electric Choke ATV Most.

For Yamaha Warrior 350 YFM350X 1987 - 2004. One against the carb, other engine. For Yamaha Big Bear 350 YFM350FW 4X4 1996 - 1998. .

2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power. For Yamaha Big Bear 350 YFM350U 1996 - 1998. Manufacturer. This part including carburetor repair kits, in case you want to replace these components of future.

specifications carbthrotatv:

• for models: Yfm350fw, 350, 4x4, Bear
• for makes: Yamaha
• brand: Maxpeedingrods
• mpn: 7b38ds
• 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
• 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

general carbthrotatv:

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

shipping carbthrotatv:

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

offer carbthrotatv:

• sold: 0
• availability: In Stock
• quantity: 1
• started: March 18, 2026
• options: Ship-to-home

returns carbthrotatv:

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

payments carbthrotatv:

• other
• credit card: Visa
• wallet: Paypal

seller carbthrotatv:

• city: Elk Grove Village, Illinois
• # reviews: 7824
• rating: 99.2%

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