UMA CARBURETOR PWK V2 – 32MM – UNIVERSAL

The UMA Racing PWK V2 Carburetor (32mm) is a precision-engineered, flat-slide carburetor designed for high-performance racing and street-tuned engines. It is a favorite among tuners because it combines the aggressive power delivery of a flat-slide design with modern features that make it much easier to tune than traditional generic carburetors.

The 32mm size is a “high-performance” choice, typically suited for engines between 150cc and 250cc engines.

Advanced Racing Architecture

• Chromed Semi-Flat D-Throttle Valve: The slide is coated in a light chrome alloy that is resistant to abrasion and wear. This ensures a smooth, consistent slide action and prevents “sticking” even after long-term exposure to fuel.

• Quad Vents: Features four specialized vents that eliminate the “post-jump bogging” often found in standard carburetors. This ensures the fuel flow remains steady even during extreme vibration or rough terrain.

• Power Jet Technology: The V2 includes an integrated Power Jet system. This acts as a secondary fuel source at high RPMs and wide-open throttle, preventing the engine from running lean when you are pushing for top speed.

Ease of Tuning

• Bottom Access Cap: The central cap at the bottom of the float bowl allows you to swap your Main Jet without removing the entire bowl. This is a massive time-saver during track-side tuning.

• High-Volume Intake: The intake bell is precision-machined to increase the velocity of the air entering the venturi, resulting in a sharper, more immediate throttle response.

Performance Advantages

1. Atomization: The flat-slide design creates a more uniform air-fuel mixture compared to round-slide carburetors, leading to better combustion efficiency and more horsepower.

2. Top-End Extension: The 32mm bore provides enough air volume to allow the engine to keep pulling into the higher RPM range where smaller carburetors would “choke.”

3. Mechanical Recovery: It significantly improves the engine’s ability to “recover” or pick up speed quickly after you roll off and then back on the throttle.

Installation Note

While this is a universal carburetor, it is physically larger than most stock units.

• Intake Manifold: You will almost certainly need a UMA Racing 32mm Intake Manifold or a large rubber adapter to fit it to your engine.

• Throttle Cable: You may need a specialized “PWK-style” throttle cable, as the pull length is different from standard CV or round-slide carburetors.

FAQs

Is 32MM too big for stock engine?
Usually best for modified engines. Mild stock setups may prefer smaller sizes.

Does it need tuning?
Yes, proper jetting and tuning are strongly recommended.

Is it universal fit?
Yes, but intake manifold and throttle cable compatibility should be checked.