Description
Product Overview
The MFC·passion intake manifold boot is a precision‑engineered component designed to connect the engine intake to the carburetor on a wide range of 110cc‑150cc Chinese ATVs and go‑karts. Constructed from high‑temperature resistant polymer, the boot withstands the heat and vibration typical of off‑road use. Key specifications include a front mounting position, double vacuum ports for enhanced fuel mixture control, an engine‑side inner diameter of 22mm (0.86″), and a carburetor‑side inner diameter of 30mm (1.18″). The bolt hole spacing measures 45mm (1.77″), ensuring a secure attachment to the chassis. Weighing only 4.8 ounces and packaged in a compact 7.2 × 4.96 × 2.28 in box, it offers a lightweight yet robust solution for performance upgrades.
Usage
Designed for riders and hobbyists who demand reliable fuel delivery, this intake manifold boot fits most 110cc, 125cc, and 150cc GY6 4‑stroke engines found in brands such as Roketa, Sunl, Taotao, Jonway, and many others. Ideal for daily trail riding, competitive karting, and weekend ATV projects, the boot’s double vacuum ports provide precise throttle response in both low‑speed maneuvering and high‑speed runs. 
Why Choose Us
MFC·passion combines rigorous testing with quality materials to deliver a product that exceeds OEM standards. Each boot undergoes dimensional verification to guarantee a perfect fit, reducing installation time and eliminating leaks. Our commitment to customer satisfaction includes responsive support and a warranty that covers manufacturing defects, ensuring peace of mind for both novice builders and seasoned mechanics.
Key Features
- Front‑positioned design for easy access and secure mounting.
- Double vacuum ports enhance fuel mixture precision and engine response.
- High‑temperature resistant polymer resists cracking under extreme conditions.
- Exact inner diameters (22mm engine side, 30mm carb side) ensure a tight, leak‑free seal.
- Universal fit for 110cc‑150cc GY6 4‑stroke engines across major ATV and kart brands.
FAQ
Will this boot fit a 125cc Sunl ATV?
Yes, the boot is compatible with 125cc Sunl models as it matches the standard 22mm engine side and 30mm carburetor side dimensions.
Do I need additional hardware to install the boot?
All necessary mounting bolts are included, and the 45mm bolt hole spacing aligns with standard chassis mounting points.
Can the boot be used on a 4‑stroke go‑kart engine?
Absolutely, it is designed for GY6 4‑stroke engines commonly found in go‑karts, providing the same reliable performance as on ATVs.
How does the double vacuum port improve performance?
The dual ports allow for more accurate vacuum signal transmission to the carburetor, resulting in smoother throttle response and better fuel efficiency.
What warranty does MFC·passion offer?
We provide a one‑year warranty covering any manufacturing defects, and our support team is ready to assist with any installation questions.




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