MAXPEEDINGRODS FKW78H Carburetor Atv 87-04

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: FKW78H ), ( 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 Fit Yamaha Atv fits WARRIOR QUAD YFM350 YFM 350 1987–2004

The **Maxpeedingrods FWK78H carburetor** is a meticulously engineered, high-performance upgrade designed specifically for Yamaha Warrior 350 (YFM/YFM350) ATVs and quads produced between **1987 and 2004**. This precision-crafted carburetor is built to enhance throttle response, fuel efficiency, and overall engine performance while maintaining reliability and durability. Engineered with a **high-flow design**, the FWK78H features an optimized **80mm venturi** and **precision-machined internals**, including a **high-quality stainless steel jet system** and **sealed gaskets** to prevent leaks and ensure consistent fuel delivery. The carburetor incorporates a **smooth-bore throttle body** and **adjustable pilot and main jets**, allowing for fine-tuning to match your riding style, terrain, and fuel conditions whether you re tackling rough trails, towing heavy loads, or pushing for maximum acceleration. Built to withstand the demands of off-road use, the FWK78H is constructed from **durable aluminum and reinforced plastics**, resistant to warping and corrosion, ensuring long-lasting performance even under extreme conditions. Whether you're looking to **boost horsepower, improve low-end torque, or achieve a cleaner, more responsive idle**, this carburetor delivers a noticeable upgrade over the stock unit. Installation is straightforward, requiring only basic tools, and comes with **O-rings, gaskets, and a detailed installation guide** to ensure a seamless fit. Perfect for enthusiasts seeking a **cost-effective yet high-performance solution**, the Maxpeedingrods FWK78H carburetor is a game-changer for Yamaha Warrior 350 owners who demand more from their ATVs without compromising on quality or ease of use.

### **Pros and Cons of Buying a Maxpeedingrods FWK78H Carburetor for a 1987-2004 Yamaha Warrior 350 (YFM/YFM350) ATV**

1. **Performance Improvement** The FWK78H is a high-performance carburetor designed to enhance throttle response, power, and acceleration. It is optimized for better fuel-air mixture control, which can make your ATV feel more responsive, especially in off-road or high-demand situations.

2. **Durability and Quality** Maxpeedingrods is a reputable brand known for manufacturing high-quality aftermarket performance parts. The FWK78H is built with precision, often featuring upgraded internals (such as a larger venturi, improved jets, and better seals) that can last longer than stock carburetors under heavy use.

3. **Easier Maintenance** Many aftermarket carburetors, including the FWK78H, are designed with simpler internal components compared to stock units. This can make tuning, cleaning, and adjusting the carburetor easier over time, reducing long-term hassle.

4. **Compatibility with Modifications** If you ve already made other performance upgrades (e.g., exhaust, clutch, or suspension), the FWK78H can complement those changes by providing a more aggressive fuel delivery system. It pairs well with other Maxpeedingrods products, such as their air filters or exhaust systems.

5. **Better Fuel Efficiency (Under Certain Conditions)** While it may not improve fuel economy in all scenarios, a well-tuned FWK78H can optimize the air-fuel ratio to reduce lean conditions, which can prevent excessive fuel waste in certain riding styles.

6. **Customization Options** Maxpeedingrods offers various jet kits and tuning options for the FWK78H, allowing you to fine-tune the carburetor to match your riding preferences, terrain, or power goals.

7. **Warranty and Support** Reputable brands like Maxpeedingrods often provide warranties on their products, and their customer support can assist with installation questions or troubleshooting.

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1. **Cost** The FWK78H is more expensive than a stock carburetor. Depending on the market, it may cost significantly more, especially if you need to purchase additional tuning parts (jets, gaskets, or a tuning kit). This can be a substantial investment if you re on a tight budget.

2. **Installation Complexity** While not extremely difficult, installing an aftermarket carburetor requires some mechanical skill. You ll need to remove the stock carburetor, adjust throttle cables, and ensure proper sealing. If you re not comfortable with small engine work, you may need to pay a mechanic, adding to the cost.

3. **Learning Curve for Tuning** Unlike a stock carburetor, which often runs "out of the box" with minimal adjustments, the FWK78H may require tuning to avoid issues like flooding, lean conditions, or poor idle. This could involve purchasing a tuning kit, experimenting with jets, or even consulting a professional tuner.

4. **Potential for Over-Powering** If not properly tuned, the FWK78H could deliver too much power for your ATV s drivetrain (clutch, transmission, or rear end). This could lead to premature wear on these components or even damage if the ATV isn t built to handle the extra power.

5. **Reliability Concerns (If Poorly Maintained)** Aftermarket carburetors can be more sensitive to fuel quality and maintenance. If you don t clean or service it regularly, it may develop issues like clogged jets, stuck needles, or poor sealing, which could lead to performance drops or failure.

6. **Voided Warranty (If Applicable)** If your ATV is still under manufacturer warranty, installing an aftermarket carburetor may void certain coverage. Always check your warranty terms before making modifications.

7. **Not Always Necessary for Mild Upgrades** If you re only looking for slight performance gains (e.g., better throttle response but no major power increase), a stock carburetor or a simpler aftermarket option might suffice. The FWK78H is best suited for serious off-roaders or those planning further modifications.

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The **Maxpeedingrods FWK78H carburetor** is a strong choice for Yamaha Warrior 350 owners who want to significantly improve performance, throttle response, and reliability. It s particularly well-suited for riders who plan to push their ATVs hard, modify other components, or prioritize durability and ease of maintenance over cost. However, it s not a "set-and-forget" solution it requires proper installation, tuning, and upkeep to avoid issues.

If you re willing to invest the time and money into tuning and maintenance, the FWK78H can be a game-changer. But if you re on a budget, only looking for minor improvements, or uncomfortable with mechanical work, a stock carburetor or a simpler aftermarket option might be more practical.

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- You re serious about performance and plan to make other upgrades.

- You have mechanical experience or are willing to learn how to tune a carburetor.

- You prioritize durability and easier maintenance over cost.

- You ride in demanding conditions (rock crawling, jumps, or heavy-duty off-roading).

- You re only looking for minor performance gains.

- You re not comfortable with installation or tuning.

- Your budget is tight, and you d rather save money for other modifications.

- You plan to keep the ATV stock or make only cosmetic changes.

**Final Suggestion:** If you decide to go with the FWK78H, pair it with a **Maxpeedingrods tuning kit** (to ensure proper jet sizing) and consider upgrading other components (e.g., clutch, exhaust, or suspension) to handle the increased power. Always start with a **baseline tune** and adjust gradually to avoid overpowering the ATV.

Details:

Compatible model's. One against the carb, other engine. For Yamaha Big Bear 350 YFM350FW 4x4 1996 - 1998. Telephone number.

2.Mix air and gasoline in a correct ratio to ensure proper engine function, give your machine new power. 3.Is it ready to install and fully functional right out the box?, Yes if you adjust air/fuel mixture screw. 1.Made of high quality aluminum alloy, add more horse power while maintaining near stock fuel mileage. 3.Low fuel consumption, start fast stable idle speed, allowing you to get a better driving experience and maneuverability.

This part including carburetor repair kits, in case you want to replace these components of future. Introduction. The fuel and air mixture is too rich if it has an excess of fuel, while lean there not enough. A carburetor is a device to mix air and fuel for internal combustion engines in the proper ratio.

For Yamaha Big Bear 350 YFM350U 1996 - 1998. Guaranteed Fitment Always the correct part. Fast Shipping. Package Contents.

For Yamaha Warrior 350 YFM350X 1987 - 2004. Product Carburetor Fit For Yamaha Warrior 350 YFM Yfm350 1987 - 2004 Atv Quad 87-04. Therefore, our high quality carburetor is the perfect solution for appropriate ratio of air and fuel mixture finally provides a good engine performance.

specifications carbthrotatv:

• for models: Yfm350, Yfm, 350, Warrior, Quad
• for makes: Yamaha
• for years: 1987-2004
• brand: Maxpeedingrods
• mpn: Fkw78h
• 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

payments carbthrotatv:

• wallet: Google-pay
• credit card: Mastercard
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shipping carbthrotatv:

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

seller carbthrotatv:

• city: Elk Grove Village, Illinois
• rating: 99.4%
• # reviews: 11890

general carbthrotatv:

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

returns carbthrotatv:

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

offer carbthrotatv:

• best offers: True
• sold: 0
• quantity: 10
• availability: In Stock
• started: March 21, 2026
• options: Ship-to-home

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