fits model: Yfm350fw, 350, 4x4, Bear. make: Yamaha.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: G02JOP ), ( 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 )
The **Maxpeedingrods G02JOP Carburetor** is a meticulously engineered, high-performance upgrade designed specifically for the Yamaha Big Bear 350 (YFM350FW) 4x4 ATV, delivering a dramatic boost in power, throttle response, and overall engine efficiency. Engineered to replace the stock carburetor with a precision-machined, all-new unit featuring a **4-stroke optimized jet system**, this aftermarket carburetor ensures a seamless blend of air and fuel for enhanced combustion, resulting in a noticeable increase in horsepower and torque while maintaining smooth operation. The **electric choke mechanism** simplifies cold starts by automatically engaging when the engine is cold, eliminating the need for manual adjustment and ensuring reliable ignition even in low-temperature conditions. Crafted from durable materials, including high-grade aluminum and precision-bored components, this carburetor is built to withstand the demands of off-road use, offering long-lasting performance without the risk of clogging or wear. Whether tackling rugged trails, hauling heavy loads, or simply seeking improved acceleration, the G02JOP delivers a noticeable performance upgrade that transforms the Yamaha Big Bear 350 into a more responsive and powerful machine. Ideal for enthusiasts looking to maximize their ATV s potential without compromising reliability, this carburetor is a straightforward yet impactful modification that enhances both performance and driving enjoyment.
### Pros and Cons of buying a Maxpeedingrods G02JOP Carburetor for Yamaha Big Bear 350 YFM350FW 4x4 ATV
#### **Pros:**1. **Performance Enhancement** The G02JOP carburetor is designed to improve throttle response and power delivery, which can make the ATV more responsive, especially in off-road conditions where quick acceleration is beneficial.
2. **Better Fuel Efficiency (Potentially)** Some aftermarket carburetors are tuned to optimize fuel-air mixtures, which may reduce fuel waste in certain driving conditions, though this depends on proper tuning.
3. **Easier Cold Starts** The electric choke feature simplifies starting in cold weather by automatically enriching the fuel mixture until the engine warms up, reducing the need for manual choke adjustments.
4. **Compatibility with Modifications** If you plan to further modify your ATV (e.g., exhaust, camshaft, or ignition upgrades), a high-quality carburetor like this one can better support those changes without causing fueling issues.
5. **Durability** Maxpeedingrods products are generally built to withstand the demands of off-road use, with materials and construction that can outlast stock components if properly maintained.
6. **Ease of Installation** Many aftermarket carburetors are designed to be a drop-in replacement, meaning they can be installed without extensive modifications to the intake system.
7. **Aftermarket Support** Maxpeedingrods offers customer support and tuning guides, which can be helpful if you encounter issues or need adjustments.
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#### **Cons:**1. **Potential for Poor Tuning Without Adjustment** Simply swapping in a carburetor without adjusting the jetting (needles, pins, and jets) can lead to rough idling, hesitation, or even stalling. Proper tuning is essential for optimal performance.
2. **Risk of Over-Running the Engine** If the carburetor is not matched with the rest of the engine s components (e.g., exhaust, camshaft, or ignition), it may cause the engine to run too rich or lean, leading to damage over time.
3. **Cost of Additional Modifications** While the carburetor itself may be a worthwhile upgrade, you might need to invest in new fuel lines, gaskets, or even a fuel pump if the stock system cannot handle the increased airflow.
4. **Learning Curve** Tuning a carburetor requires some mechanical knowledge. If you re not familiar with carburetor adjustments, you may need to consult a professional, which adds to the cost.
5. **Potential for Voiding Warranty** If your ATV is still under manufacturer warranty, installing an aftermarket carburetor may void coverage, especially if the modification contributes to engine issues.
6. **Durability Concerns with Cheap Parts** While Maxpeedingrods is a reputable brand, cheaper carburetor components (e.g., O-rings, gaskets) can wear out quickly if not properly maintained, leading to leaks or performance drops.
7. **Not a Universal Fix for Engine Issues** If your ATV has underlying problems (e.g., worn pistons, bad ignition, or clogged air filter), upgrading the carburetor alone won t resolve those issues. A full engine check is still necessary.
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### **Conclusion:**The Maxpeedingrods G02JOP carburetor is a solid aftermarket option for the Yamaha Big Bear 350 if you re looking to improve throttle response, cold-start reliability, and overall performance. However, it is not a "set-and-forget" upgrade proper tuning, maintenance, and compatibility with other engine components are critical to avoid problems.
If you re experienced with carburetor adjustments or willing to learn, this upgrade can be very rewarding. For beginners, it may be worth consulting a mechanic or tuning specialist to ensure the carburetor is properly set up. Additionally, if your ATV is still under warranty, weigh the risks of voiding coverage against the benefits of the upgrade.
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### **Recommendation:** - **Proceed with the upgrade if:**- You re prepared to tune the carburetor properly (or have a professional do it).
- You ve already addressed other potential engine issues (e.g., air filter, spark plugs, fuel system).
- You re looking for noticeable performance gains in acceleration and cold starts.
- You re comfortable with the possibility of voiding warranty coverage.
- **Avoid or reconsider if:**- You re not willing to invest time in learning carburetor tuning.
- Your ATV has other unresolved mechanical problems.
- You prefer a simpler, lower-risk modification (e.g., upgrading the air filter or exhaust instead).
- You re on a tight budget, as additional parts (gaskets, fuel lines) may be needed.
For the best results, pair this carburetor with a **high-quality air filter**, **proper jetting**, and **regular maintenance**. If you re unsure, start with a **tune-up** (fuel system check, ignition timing, compression test) before making the carburetor swap.
3.Is it ready to install and fully functional right out the box?, Yes if you adjust air/fuel mixture screw. 2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power. . For Yamaha Big Bear 350 YFM350FW 4X4 1996 - 1998.
Choke Type:Manual. Introduction. Manufacturer. Quick, Simple.
For Yamaha Warrior 350 YFM350X 1987 - 2004. Package Contents. 1.Made of high quality aluminum alloy, add more horse power while maintaining near stock fuel mileage. Carburetor For Yamaha Big Bear 350 YFM350FW 4X4 4-Stroke Electric Choke ATV Most.
For Yamaha Big Bear 350 YFM350U 1996 - 1998. Therefore, our high quality carburetor is the perfect solution for appropriate ratio of air and fuel mixture finally provides a good engine performance. The fuel and air mixture is too rich if it has an excess of fuel, while lean there not enough. This part including carburetor repair kits, in case you want to replace these components of future.
Compatible model's. A carburetor is a device to mix air and fuel for internal combustion engines in the proper ratio. 3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability. One against the carb, other engine.