Carburetor PWK 33mm–42mm for 250cc–650cc Dirt Bike, ATV, Quad, UTV

GOOFIT PWK Series High-Performance Flat-Slide Carburetor

Maximum volume for maximum displacement. The GOOFIT PWK Series is a precision-engineered "flat-slide" carburetor designed for high-output 250cc to 650cc engines. Whether you are tearing up the dunes on a 450cc Quad or pushing a 650cc Adventure bike to its limits, the PWK platform provides the massive airflow and instant fuel delivery required to eliminate "bogging" and maximize your engine's horsepower.

Crafted from premium-grade aluminum alloy, each unit features a professional anodized finish. This advanced coating significantly improves abrasion and corrosion resistance while providing superior heat insulation—keeping your fuel cool and your air-fuel mixture stable even during the most demanding long-distance rides or aggressive motocross motos.

Product Compatibility

• Engine Range: Large-displacement 250cc, 300cc, 350cc, 400cc, 450cc, 500cc, and 650cc engines.
• Vehicle Types: Off-Road Dirt Bikes, Pit Bikes, ATVs, Quads, UTVs, and High-Performance Scooters.
• Carburetor Type: PWK Flat-Slide (Optimized for racing response).

Available Intake Sizes:

• Mid-Range (33mm, 34mm, 35mm): Perfect for 250cc–350cc engines.
• High-Power (36mm, 38mm): The standard for 400cc–500cc racing quads and dirt bikes.
• Maximum Flow (40mm, 42mm): Designed for 500cc–650cc big-bore monsters.

Why Choose the GOOFIT PWK Series?

• Flat-Slide Technology: Unlike traditional round-slide carburetors, the flat-slide design creates a direct, unobstructed air path, resulting in lightning-fast throttle response and higher air velocity.
• Anodized Durability: The specialized surface treatment protects against the corrosive effects of modern ethanol fuels and harsh environments, ensuring your carburetor stays in "factory new" condition.
• Solve Starting Issues: Engineered to replace aging or underperforming stock units, effectively fixing difficult cold starts and unstable idling common in larger engines.
• Advanced Heat Resistance: The high-quality alloy build manages engine heat effectively, preventing "vapor lock" and ensuring consistent power delivery in hot climates.