Description
Overview:
The Slow Running Adjuster Screw is a genuine Villiers component for the Amal 379 carburettor, used on many Villiers and JAP small engines. Identified by OEM No. 379/015, this durable metal screw fine-tunes the idle (tick-over) speed so the engine runs smoothly at low throttle and restarts reliably. It threads into the carburettor body and allows precise, incremental adjustment to stabilise idle and help maintain efficient fuel use. Supplied as unused old stock from the period, it can show age-related tarnishing or storage marks, but performance is unaffected. Ideal for restoring vintage machinery or keeping older equipment serviceable, it serves as a direct replacement where the original Amal 379 slow-running screw is fitted.
Key Features:
- Genuine Villiers part for assured fit and function (OEM 379/015)
- Designed for Amal 379 carburettor used on Villiers and JAP engines
- Fine control of idle speed for stable tick-over and smoother running
- Durable metal construction for long service life
- Direct replacement for worn, damaged or missing original screws
- Helps maintain consistent starting and low-speed operation
- Simple to install and adjust with basic hand tools
- Suitable for routine servicing and period-correct restorations
- Unused vintage stock; cosmetic tarnish or storage wear may be present
- Compact, robust form factor suited to workshop or field maintenance
Typical Applications:
Used on vintage plant, garden machinery and small industrial engines equipped with the Amal 379 carburettor. Suitable for maintaining or restoring older Villiers and JAP-powered equipment where precise idle control is required, such as classic small engines on mowers, rotavators and light construction tools.
Also known as:
Idle adjuster screw, idle speed screw, slow-running screw, tick-over adjustment screw, throttle stop screw for Amal 379 carburettor.
Product Specifications
| L&S Part No. | 379/015 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | 379/015 |
| Unit of Sale | 1 |
| Key Features | - Genuine Villiers part for Amal 379 carburettor - Fine control of idle speed for smoother running - Durable metal construction for long service life - Direct replacement for original Amal 379 screw - Suitable for vintage machinery restoration and maintenance |
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