Polini PWK 30mm Carburetor: Honda Dio, SYM DD, 72cc Big Bore
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Race-Grade Performance: Polini PWK 30mm Racing Carburetor
The Polini PWK 30mm is widely considered the best-performing "D-slide" carburetor on the market. Unlike standard flat-slides, this Italian-engineered masterpiece features a turned-out intake tract and machined funnel for superior airflow and instantaneous throttle response. It is the gold standard for high-end 70cc–90cc 2-stroke builds and 125cc–300cc 4-stroke tuning.
Why the Polini PWK Outperforms:
- Precision Machined: CNC-finished intake duct ensures maximum airflow precision—no "rough" casting marks here.
- Simplified Tuning: Polini purposely removed the troublesome "Power-Jet" system used in cheaper clones, ensuring a more stable and reliable tune.
- Universal Parts Support: Uses standard PWK main and pilot jets, making it incredibly easy to find tuning components locally.
- Race-Ready Finish: Lightweight chrome-alloy slide is highly resistant to abrasion and wear for long-term consistency.
Model Fitment Guide
This 30mm unit is a primary performance upgrade for the following "Rugged" and Performance platforms:
| Engine / Model Type | Recommended Application |
|---|---|
| Honda Dio / Elite | AF16, AF18, AF27, AF28 with 72cc+ Big Bore Kits |
| Yamaha Zuma / BWS | Zuma 50 (Vertical/Horizontal) and Zuma 125 builds |
| GY6 Platforms | 150cc to 232cc high-performance "stroker" builds |
| European 2T | Aprilia SR50, RS50, Derbi Senda, and SYM DD50 |
| Vespa / Lambretta | Vintage 2-stroke performance tuning (requires manifold) |
Technical Specs
- Carburetor Size: 30mm
- Main Jet: #118 (Pre-installed) | Pilot Jet: #45
- Manifold Connection: 35mm (Fits standard PWK/OKO rubber boots)
- Air Filter Mount: 48.8mm (Fits most pod-style high-flow filters)
- Choke: Integrated Manual Pull-Button
- Original Parts For Scooters SKU 146-8-30
Pro Builder Tip: When moving to this 30mm carb, you must use a high-flow intake manifold with a 35mm opening. We recommend pairing this with the Polini Evolution Reed Valve for the ultimate intake path.
This product is intended for off-road use only.
This product is not intended for use on public roads or land.
This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.
*Performance upgrades are considered racing parts and are not covered by warranty.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.