AUTOKAY PZ20 Carburetor Kit for 50–125cc ATVs & Dirt Bikes — Complete Replacement with Gaskets & Filters

The AUTOKAY PZ20 is a complete aftermarket carburetor kit designed to replace worn or damaged carburetors on most 50cc–125cc four-stroke Chinese ATVs, go-karts and small dirt bikes, and includes gaskets, filters and mounting hardware.

If your quad, pit bike or mini ATV is running lean, hesitating, or leaking fuel, swapping in a fresh PZ20 carburetor and the supplied accessories can restore reliable starting and smoother throttle response. This kit is built to fit a broad range of TaoTao, Coolster, Lifan, Roketa, SUNL and similar models — and some Honda CRF/CRF-style bikes — supplying everything needed for a straightforward replacement without hunting down parts separately.

Will this PZ20 carburetor fit my 50cc–125cc ATV or dirt bike?

The AUTOKAY PZ20 is intended for many Chinese four-stroke minibikes and ATVs from 50cc up to 125cc and can also suit specific Honda CRF/CRF-style models listed by year. Fit depends on intake manifold bore and throttle linkage style, so confirm compatibility with your model list or measure your manifold before ordering.

• Compatible with brands like TaoTao, Coolster, Lifan, Kazuma, Baja, Roketa, SUNL, Redcat, and others.
• Commonly used on 50cc–125cc ATVs, go-karts and pit bikes (see product fit list for model specifics).
• Not compatible with certain series (e.g., Taotao DB series) — always cross-check your model.

What’s included and how does the kit simplify installation?

Beyond the carburetor itself, AUTOKAY supplies a gasket set, O-ring, fuel filter, air filter, fuel line, intake manifold, screws and a spark plug so you can replace the carb and related wear items in one service. Having matched parts reduces trips to the parts store and helps ensure a sealed, correct installation.

• Complete package: carburetor, gaskets, O-ring, fuel and air filters, fuel line, manifold, screws and a spark plug.
• Updated design includes extra accessories; contact seller if you receive an earlier version.
• Hardware included to match common mounting patterns for quick swap-outs.

How will the PZ20 affect engine starting, throttle and fuel delivery?

Replacing a tired or clogged carburetor often reduces hard starting, idle instability and throttle hesitation. The PZ20 provides consistent fuel and air metering for everyday riding, improving responsiveness across low-to-mid throttle ranges when jetted and adjusted properly.

• Improves idle stability and cold starts vs. a fouled original carburetor.
• Smoother throttle response after proper jetting and synchronization with your bike’s intake.
• Fuel filter and air filter included to prevent contaminants from compromising performance.

What should I check before buying and after installation?

Measure your intake manifold bore, inspect linkage type and confirm model compatibility with the vendor list. After installing, check for fuel leaks, verify choke operation, and fine-tune idle and air/fuel screws to match altitude and riding style.

• Verify intake manifold size and throttle linkage match the carburetor configuration.
• Ensure all gaskets and clamps are seated to prevent vacuum or fuel leaks.
• Adjust idle and mixture screws and test ride to confirm proper jetting.

Who is this for: The AUTOKAY PZ20 carburetor kit is aimed at owners and mechanics of small four-stroke ATVs, go-karts and dirt/pit bikes who want a single, cost-effective replacement that includes the commonly needed gaskets and filters. It suits DIY riders doing routine maintenance or repairs, as well as shops servicing a range of Chinese-brand minibikes and specific Honda CRF/CRF-style models listed by year. If you need a straightforward carb swap to restore starting and throttle behavior without sourcing separate parts, this kit is a practical fit.