Description
Product Overview
WD-40 Carburetor Cleaner (model 300134) is a specialized dual‑action spray designed to tackle stubborn carbon buildup in carburetors, throttle bodies, and unpainted metal components. The formula combines a powerful solvent that softens baked‑on deposits with a high‑pressure spray that expels the loosened material, ensuring a clean passage for air and fuel. Packaged in a 12‑oz aerosol can, it is safe for use on oxygen sensors and catalytic converters, making it suitable for both old and new gasoline‑powered equipment.
Usage
This cleaner is ideal for a broad spectrum of applications, including cars, trucks, motorcycles, boats, tractors, lawn mowers, and weed trimmers. Simply spray the product onto the carburetor or throttle body, allow the solvent to work for a few seconds, then activate the spray to blast away the residue. The result is an engine that starts quickly, idles smoothly, and performs better at high RPMs.

Why Choose Us
WD-40 is a trusted name in automotive maintenance, and this carburetor cleaner reflects the brand’s commitment to quality and safety. The dual‑action system ensures thorough cleaning without harming sensitive components, and the product’s proven effectiveness is reflected in a 4.7‑star rating from over 2,800 customers. Its versatility across various equipment types makes it a cost‑effective solution for both professional mechanics and DIY enthusiasts.
Key Features
- Dual‑action formula: solvent loosens deposits, spray removes them
- Safe for O₂ sensors and catalytic converters
- Effective on both new and heavily carbon‑fouled engines
- Improves start‑up speed, idle stability, and high‑RPM performance
- Suitable for cars, motorcycles, boats, lawn and garden equipment
FAQ
Can I use this cleaner on a cold engine?
Yes, the solvent works at ambient temperatures, but for best results allow the engine to warm up slightly so the deposits are more receptive to the cleaning action.
Will the spray damage my catalytic converter?
No, the formulation is designed to be non‑corrosive to catalytic converters and oxygen sensors, even if incidental contact occurs.
How often should I clean my carburetor with this product?
For optimal performance, clean the carburetor at least once a year or whenever you notice sluggish starts, rough idle, or reduced fuel efficiency.
Is this product safe for use on aluminum parts?
Yes, the cleaner is safe on unpainted aluminum and other metal surfaces commonly found in carburetors and throttle bodies.
Can I use this on small engines like lawn mowers?
Absolutely. The spray is effective on all gasoline‑powered equipment, from large automotive engines to small handheld tools.




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