HOOAI PZ20 Carburetor for 50–125cc ATVs & Go-Karts — 35mm Conical Filter, Complete Install Kit

The HOOAI PZ20 carburetor is a complete replacement and performance upgrade for many Chinese 4-stroke 50–125cc ATVs, go-karts and dirt bikes, delivering smoother throttle response and improved fuel metering.

Designed as a drop-in alternative for a wide range of Taotao, SunL, Kazuma and similar small-engine machines, this PZ20 kit includes the carb body plus filter, intake hardware, fuel lines, gaskets and a fuel shutoff valve so you can rebuild or swap quickly. The kit targets users who want better throttle feel, easier starting and a more serviceable assembly than worn OEM carbs. Before ordering, compare the carb bore and mounting flange in your vehicle to the images and measurements to confirm fit.

How will this carburetor change rideability on my 50–125cc machine?

Swapping a tired or incorrectly jetted carb for the HOOAI PZ20 typically restores crisp throttle response and reduces stumbling under load. It’s sized and jetted for small four-stroke engines and includes an improved conical air filter to help maintain steady airflow.

• Better throttle response and more consistent idling
• Conical 35mm air filter for cleaner airflow and easier maintenance
• Includes fuel filter and reinforced fuel lines for reliability

Will it fit my Taotao, Kazuma, Coolster or SunL ATV / go-kart?

The PZ20 kit is explicitly compatible with many Taotao, SunL, Roketa, Kazuma, Buyang and similar Chinese 50–125cc models; it’s commonly used on Baja and NST platforms. Fit depends on your carb throat diameter and intake manifold flange—verify those against the product photos and your existing unit.

• Compatible with multiple brands and dozens of 50–125cc models
• Check bore size and mounting flange before purchase
• Not compatible with XR50/CRF50 two-stroke mini bikes

What comes in the HOOAI PZ20 carburetor kit and why it matters?

This kit arrives with everything needed for installation and routine upkeep: the carburetor body, a 35mm conical air filter with clamp, intake pipe and gaskets, fuel lines and filters, a shutoff valve, and extra gaskets. That broad parts list reduces the need to source additional components after purchase.

• PZ20 carburetor body and 35mm motorcycle-style conical air filter
• Intake pipe, multiple gaskets and rubber seals for a secure fit
• Fuel lines, inline fuel filter, fuel shutoff valve and spark plug

How should I install and tune the new carb for best results?

Installation is straightforward if you have basic mechanical skills: remove the old carb, transfer mounting hardware, attach the intake pipe and gaskets, connect fuel lines and set the idle. After mounting, fine-tune the idle and mixture screws and test under load to adjust jetting or needle position for altitude and fuel quality.

• Install intake gaskets and secure carb flange evenly
• Set idle and mixture screws per manual, then ride-test adjustments
• Swap jets or needles if running too lean or rich in your climate

Who is this for: The HOOAI PZ20 carburetor kit is ideal for owners of Chinese-made or clone 50–125cc ATVs, dirt bikes and go-karts who need a ready-to-install replacement carb or want a simple performance and maintainability upgrade. It’s best for DIY mechanics, fleet operators, and riders who can perform basic tuning. If your machine uses a different bore size or a two-stroke-specific carb, check compatibility before buying.