Carburetor PZ21 20mm for Yamaha PW50, PY50, QT50 (1981–2009) | 2-Stroke Mini Dirt Bike

GOOFIT PZ21 20mm Precision Carburetor for Yamaha PW50 & 2-Stroke Mini Bikes

Bring your classic mini-moto back to life. The GOOFIT PZ21 is a high-performance 20mm carburetor specifically engineered to replace the factory units on Yamaha PW50, PY50, and QT50 models produced between 1981 and 2009. If your bike has been sitting in the garage and now struggles with a clogged idle or fuel overflow, this precision-built carburetor is the most reliable way to get your young rider back on the track.

Constructed from a high-grade, rust-proof alloy, the PZ21 is designed to handle the high-vibration environment of 2-stroke engines. It provides a perfect air-fuel mixture for vigorous acceleration, ensuring that the engine runs efficiently without the loud "sucking" intake noise found in lower-quality aftermarket parts.

Product Compatibility

• Yamaha Models: PW50 (1981–2009), QT50 Yamahopper (1979–1992).
• Clone Models: PY50, G50T, and various 50cc 2-stroke "Peewee" dirt bike clones.
• Engine Type: 50cc 2-Stroke Air-Cooled Engines.

Key Technical Specifications:

• Manifold Intake Diameter: 20mm (0.78")
• Air Filter Interface (OD): 30mm (1.18")
• Build Quality: Waterproof and corrosion-resistant heavy-duty alloy.
• Tuning: Pre-jetted for 50cc 2-stroke operation.

Why Choose the GOOFIT PZ21 Series?

• First-Kick Reliability: The PZ21 is jetted to provide the rich mixture needed for cold starts on classic 2-strokes, reducing the physical effort needed to start the bike.
• Optimized Powerband: Engineered to deliver fuel smoothly throughout the RPM range, eliminating the "stuttering" often felt when moving from idle to full throttle.
• Durable & Rust-Proof: The internal pathways are precision-machined to resist the gumming effects of ethanol fuels and the corrosion caused by moisture during storage.
• Energy & Fuel Efficient: By atomizing fuel more effectively, this carburetor ensures cleaner combustion, which leads to less spark plug fouling and better fuel economy.