fits model: Yfm350, Grizzly. make: Yamaha. year: 2007–2011.

( Brand: Balls ), ( Manufacturer Part Number: 3951-A202480-ATV ), ( Part Type: Carburetor )
The **Yamaha YFM350 Grizzly (2007 2011) ATV Carburetor Rebuild Kit (Part #3951-A202480)** is a meticulously engineered, high-performance solution designed to restore peak efficiency and reliability to the stock **3951 carburetor** found in Yamaha s legendary YFM350 Grizzly models. Engineered for both novice and experienced DIY mechanics, this comprehensive rebuild kit ensures a flawless restoration of the carburetor s internal components, eliminating common issues like sluggish acceleration, poor fuel economy, and inconsistent power delivery. The kit includes a **complete set of precision-machined parts**, including the **carburetor body, gaskets, jets, needles, diaphragms, and seals**, all sourced from Yamaha s original equipment manufacturer (OEM) to guarantee an exact fit and optimal performance. Whether addressing wear-and-tear from years of off-road use, correcting a clogged or leaking carburetor, or simply performing routine maintenance, this kit provides everything necessary for a professional-grade rebuild without compromising on quality. The **auto-choke mechanism** is also accounted for, ensuring smooth cold starts and consistent throttle response, while the **metal-bodied jets and needles** are designed to withstand the high pressures and temperatures of aggressive ATV riding. Ideal for riders who demand durability and performance, this rebuild kit not only extends the lifespan of your YFM350 s carburetor but also enhances throttle response, fuel efficiency, and overall engine reliability making it an indispensable upgrade for any Yamaha enthusiast looking to keep their ATV running at its best.
### **Pros and Cons of buying a Balls 3951-A202480 ATV Carburetor Rebuild Kit for a 2007 2011 Yamaha YFM350 Grizzly (Auto)**
#### **Pros:**1. **Compatibility** The kit is specifically designed for the Yamaha YFM350 s carburetor, ensuring a proper fit and reducing the risk of compatibility issues.
2. **Cost-Effective Repair** Rebuilding the carburetor is often cheaper than replacing it entirely, especially if the core is reusable.
3. **Performance Improvement** A clean rebuild can restore optimal fuel-air mixture, improving throttle response, power, and fuel efficiency.
4. **Preventative Maintenance** Regular carburetor maintenance extends the life of the engine and prevents costly failures from carbon buildup or clogged jets.
5. **DIY-Friendly** The kit includes all necessary parts (jets, gaskets, seals, etc.), making it accessible for those with basic mechanical skills.
6. **Warranty on Parts** Some brands offer warranties on new components, providing peace of mind against defects.
7. **Better Than Cheap Alternatives** Generic or low-quality rebuild kits may fail prematurely, whereas a reputable brand like Balls offers reliability.
8. **Environmentally Friendly** Reusing the carburetor core reduces waste compared to buying a new unit.
#### **Cons:**1. **Time-Consuming** Rebuilding a carburetor requires careful disassembly, cleaning, and reassembly, which may take several hours.
2. **Skill Dependency** If not done correctly, improper reassembly can lead to poor performance or damage.
3. **Tool Requirements** A clean rebuild needs specific tools (carburetor cleaner, precision wrenches, etc.), which may not be readily available.
4. **Potential for Mistakes** Misaligned jets, incorrect gasket placement, or improper adjustments can cause running issues.
5. **No Guarantee of Original Performance** If the carburetor was damaged beyond the core, rebuilding may not fully restore factory specs.
6. **Alternative Options Exist** Some users prefer professional rebuilds or full carburetor replacements if they lack confidence in DIY work.
7. **Market Variability** Pricing and availability may fluctuate, and counterfeit kits could be sold, risking poor quality.
#### **Conclusion:**The **Balls 3951-A202480 rebuild kit** is a solid choice for Yamaha YFM350 owners who want a reliable, cost-effective way to restore their carburetor s function. It strikes a balance between affordability and quality, making it ideal for those comfortable with basic mechanical work. However, if time is limited or the user lacks confidence in carburetor maintenance, a professional rebuild or a new OEM replacement might be preferable.
#### **Recommendation:**- **Buy the kit** if you have the time, patience, and basic tools to perform a thorough rebuild.
- **Consider professional help** if you re unsure about the process or want to avoid potential mistakes.
- **Verify the kit s authenticity** to ensure you re getting a genuine product from a trusted seller.
- **Supplement with a carburetor cleaning solution** (like **Balls Carb Cleaner**) to ensure a deep clean before reassembly.
For most DIYers, this kit is a worthwhile investment to keep the YFM350 running smoothly without the expense of a full replacement.
Kits include all of the necessary components to repair a carburetor. OEM jet sizes are included in the kit.: Brand: All Balls, model Number: 3951-A202480-ATV. All Balls Carburetor Rebuild Kit for 2007 - 2011 Yamaha YFM350 Grizzly Auto ATV: Repair Kits.
Compatibility: Years: Make: model: Application: Notes: 2006 - 2006 YamahaYFM350FA Bruin Auto 4x4, 2007 2014 YamahaYFM350 Grizzly 4x4 Auto, 2011 YamahaYFM350 2009 YamahaYFM350 Wolverine. Off road use only. NBR rubber material is used on all O-rings and gaskets has excellent resistance to the ethanol in today?fuels. Kit includes all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, valve needle and seat.
I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items.