Description
Overview:
This Air Regulating Screw is a Genuine Zenith part for the Zenith 13TC carburettor used on vintage JAP engines, including the JAP 2A and JAP 2S. Manufactured to original specification, the screw is typically machined from brass for corrosion resistance and smooth, precise adjustment, and supplied with a steel compression spring to hold the setting under vibration. Its job is to meter incoming air at the carburettor, helping you set a clean idle and stable running across the rev range. Supplied as unused vintage (new old stock), it may show light tarnishing from storage that will not affect function. OEM No. 015457 ensures correct identification and a proper fit when restoring or maintaining older machinery that relies on the 13TC carburettor.
Key Features:
- Genuine Zenith component (OEM No. 015457) for reliable compatibility with 13TC carburettors
- Brass construction for durability and corrosion resistance, aiding long service life
- Steel spring maintains adjustment against vibration for consistent carburettor settings
- Precision tapered tip supports accurate air metering and smoother idle
- Made to original specification to maintain authenticity on vintage engines
- Straightforward to install and remove for cleaning as part of routine servicing
- Helps optimise combustion efficiency and throttle response on correctly set-up engines
- Suitable for restoration work where an exact-fit, period-correct part is required
- New old stock: may show cosmetic ageing that does not impact performance
Typical Applications:
Used on Zenith 13TC carburettors fitted to JAP stationary and small engines found in vintage mowers, pumps, generators, compact construction equipment, and workshop projects. Ideal for rebuilds, tuning, and ongoing maintenance where stable idle quality, clean pick-up, and dependable running are required on classic machinery.
Also known as:
Air screw, air adjustment screw, carburettor air screw, mixture screw, pilot air screw, idle air screw, carb air regulating adjuster.
Fits Models:
13TC, JAP 2, JAP 2A, JAP 2S, JAP2, JAP2A, JAP2S, Suffolk
Product Specifications
| L&S Part No. | 015457 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Zenith |
| OEM No. | 015457 |
| Unit of Sale | 1 |
| Applications | 13TC, JAP 2, JAP 2A, JAP 2S, JAP2, JAP2A, JAP2S, Suffolk |
| Machine Type | Engines |
| Fits Brands | JAP, Zenith |
| Fits Models | JAP 2 |
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