Description
Product Overview
40 IDF Carburetor for Weber 40mm Carb 2 Barrel Beetle Car Air Horn (Golden) — a direct-fit replacement carburetor engineered to restore proper fuel delivery and engine performance. Pre-calibrated and tested for reliable fuel metering across the RPM range — ideal for rebuilds, restorations, and troubleshooting.
Key Features
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Direct Bolt-On: Pre-calibrated, ready to install — matches OEM mounting points, throttle linkage, and fuel inlet.
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Precision Fuel Metering: Factory-set air/fuel mixture for optimal idle, throttle response, and fuel economy.
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Durable Construction: Die-cast aluminum body with corrosion-resistant finish — handles ethanol-blended fuels.
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Complete Assembly: All internal components pre-assembled and tested — floats, jets, needles, gaskets.
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Versatile Application: Compatible with listed ATVs, UTVs, go-karts, dirt bikes, and small engine applications.
Specifications
| Parameter |
Specification |
| Type |
Weber IDF-Style |
| Barrel |
2-Barrel |
| Condition |
Brand New — Pre-Assembled |
| Fuel Type |
Gasoline (E10 compatible) |
Installation Tips
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Clean surfaces: Remove old gasket material before install.
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Check float level: Verify float height matches specification.
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Prime fuel system: Fill float bowl before first start.
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Adjust idle mixture: Fine-tune at operating temperature.
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Use fresh fuel: Stale fuel is the #1 cause of carburetor problems.
Frequently Asked Questions
Q: Is this carburetor pre-tuned?
A: Yes, factory baseline jetting. Fine-tuning may be needed for your altitude and engine mods.
Q: Will this fit my engine?
A: Check product title for compatible makes/models. Verify intake bolt pattern and throttle linkage match.
Q: Do I need to re-jet for altitude?
A: Above 3,000 ft, smaller main jets may be needed (1-2 sizes per 3,000 ft gain).
Q: Does this come with gaskets?
A: Yes, base gasket included. Most include O-rings and additional seals.
Q: How do I break in a new carb?
A: No special break-in. Install, prime, start, set idle. Re-check bolts after first heat cycle.
Q: What fuel should I use?
A: Fresh 87+ octane gasoline. Avoid >10% ethanol. Drain float bowl for storage or use fuel stabilizer.
Shop with Confidence
Get your engine running right. Ships fast from US warehouse. Contact support for fitment questions.
