fits model: Yfm350, 350, Warrior. make: Yamaha. year: 1999–2004.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 9BEJSK ), ( 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 9BEJSK Carburetor** is a meticulously engineered, high-performance upgrade designed exclusively for Yamaha s legendary **Warrior 350 (YFM350) models**, spanning the production years from **1999 through 2004**. This precision-crafted carburetor is a game-changer for riders seeking to unlock the full potential of their 350cc four-stroke utility vehicle, delivering a seamless blend of power, reliability, and ease of installation. Built to replace the stock carburetor, the **9BEJSK** features an **enlarged bore and optimized airflow passages**, allowing for a richer, more responsive fuel mixture that enhances throttle response and low-end torque while maintaining smooth, consistent power delivery across the entire RPM range. Its **durable stainless steel construction** ensures longevity, even under demanding conditions, and the **precision-machined components** including the jetter system and throttle body are designed to minimize carbon buildup and maximize efficiency, reducing the need for frequent maintenance. The carburetor s **adjustable idle screw** and **easy-to-service design** make fine-tuning performance effortless, whether you re looking to optimize fuel economy, improve cold-start reliability, or simply enjoy a more spirited ride. Compatible with both **gasoline and ethanol-blend fuels**, this carburetor is a versatile choice for riders who demand performance without compromising on practicality. Whether you re hauling heavy loads, navigating rough terrain, or simply enjoying the open road, the **Maxpeedingrods 9BEJSK** transforms your Yamaha Warrior 350 into a more agile, powerful, and responsive machine, proving that even a classic engine can benefit from cutting-edge tuning.
### **Pros and Cons of Buying a Maxpeedingrods 9BEJSK Carburetor for a Yamaha Warrior 350 (YFM350, 1999 2004)**
#### **Pros:**1. **Performance Gains** The Maxpeedingrods 9BEJSK carburetor is designed to improve throttle response, power delivery, and overall engine performance. It is optimized for better fuel-air mixture control, which can result in noticeable acceleration and smoother operation, especially under load.
2. **Aftermarket Support & Tuning Flexibility** Maxpeedingrods is a well-known brand in the performance aftermarket, offering carburetors that are compatible with various tuning options. This means you can pair it with other performance parts (such as exhaust systems, air filters, or ECU tuners) for further gains.
3. **Durability & Quality Materials** The carburetor is constructed with materials designed to withstand higher performance demands, reducing the risk of premature failure compared to stock units.
4. **Easier Installation** Since it is a direct replacement for the stock carburetor, installation is relatively straightforward for those with basic mechanical skills. No major modifications to the engine or fuel system are typically required.
5. **Potential Fuel Efficiency Improvements** In some cases, a properly tuned carburetor can optimize fuel consumption, though this depends on how the engine is otherwise modified.
6. **Compatibility with Stock & Modified Engines** The 9BEJSK carburetor is designed to work well with the Yamaha Warrior 350 s engine family (1999 2004), making it a viable upgrade for both stock and lightly modified bikes.
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#### **Cons:**1. **Requires Tuning** A stock carburetor is calibrated for the bike s original specifications. Switching to a performance carburetor like the Maxpeedingrods 9BEJSK will likely require adjustments to the fuel mixture, ignition timing, or ECU settings to avoid rich/lean conditions, rough idling, or power loss. This may involve purchasing a tuner or consulting a professional.
2. **Potential for Increased Fuel Consumption** If not properly tuned, the carburetor may run richer, leading to higher fuel usage and potential waste. This is especially true if other performance parts (like exhaust or air intake) are added without corresponding adjustments.
3. **Cost** While the carburetor itself may not be extremely expensive, the cost of tuning (whether through a professional or an aftermarket tuner) can add up. Additionally, if installation requires new hoses, gaskets, or seals, these will incur extra costs.
4. **Risk of Voiding Warranty** If your bike is under warranty, installing an aftermarket carburetor may void coverage, especially if the manufacturer considers it a non-OEM part.
5. **Learning Curve for DIY Tuning** If you attempt to tune the carburetor yourself, you may need to experiment with jet sizes, idle screws, and throttle response. Improper tuning can result in poor performance, stalling, or even engine damage.
6. **Potential for Overkill on Stock Engines** If your Yamaha Warrior 350 is not otherwise modified (e.g., no exhaust, no clutch/kickdown modifications), the gains from the Maxpeedingrods carburetor may be modest. The biggest benefits are typically seen when paired with other performance upgrades.
7. **Maintenance Requirements** Performance carburetors can be more sensitive to fuel quality and require regular cleaning and maintenance to prevent clogging or malfunction. This may involve more frequent carburetor servicing than a stock unit.
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### **Conclusion:**The Maxpeedingrods 9BEJSK carburetor is a solid choice for Yamaha Warrior 350 owners looking to enhance throttle response, power, and overall engine performance. It offers noticeable improvements over the stock carburetor, especially when paired with other modifications. However, it is not a "plug-and-play" solution it requires tuning to avoid issues like poor idling, fuel waste, or power loss.
If you are willing to invest time in tuning (either through a professional or an aftermarket solution) and pair the carburetor with complementary upgrades (such as an exhaust system or air filter), the Maxpeedingrods 9BEJSK can be a worthwhile upgrade. For stock or lightly modified bikes, the gains may be subtle, but for those seeking a performance boost, it is a viable option.
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### **Recommendation:**- **If you are a beginner or not comfortable with tuning**, consider consulting a professional mechanic or performance shop to handle the installation and initial tuning.
- **If you are experienced with tuning**, purchase the Maxpeedingrods 9BEJSK carburetor along with a tuner (such as a Power Commander or similar) to optimize performance.
- **Pair with other upgrades** (e.g., exhaust, air intake, or clutch/kickdown modifications) for the best results.
- **Monitor fuel consumption** after installation and adjust as needed to avoid excessive waste.
- **Regularly clean and maintain** the carburetor to ensure longevity and optimal performance.
For the Yamaha Warrior 350 (1999 2004), the Maxpeedingrods 9BEJSK carburetor is a practical and effective upgrade for those seeking improved throttle response and power, provided proper tuning is performed.
For Yamaha Big Bear 350 YFM350U 1996 - 1998. Introduction. One against the carb, other engine. 2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power.
The fuel and air mixture is too rich if it has an excess of fuel, while lean there not enough. Compatible model's. For Yamaha Warrior 350 YFM350X 1987 - 2004. 3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability.
1.Made of high quality aluminum alloy, add more horse power while maintaining near stock fuel mileage. This part including carburetor repair kits, in case you want to replace these components of future. All messages. Factory Warranty.
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. For Yamaha Big Bear 350 YFM350FW 4x4 1996 - 1998. Best Costumer Service.
Guaranteed Fitment Always the correct part. Therefore, our high quality carburetor is the perfect solution for appropriate ratio of air and fuel mixture finally provides a good engine performance. For Yamaha Wolverine 350 YFM350FX 4X4 1995. Suspension Masters US.
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