Description
Overview:
This throttle stop screw is a genuine Villiers component for the B1320 carburettor, identified by OEM No. 27370. It is a precision machined metal screw used to set the closed-throttle stop position so you can control and stabilise engine idle speed. Suitable for classic small petrol engines fitted with the Villiers B1320 carburettor, it is commonly found on older machinery used in gardening, light construction, and general-purpose equipment. The part is built for an accurate fit and dependable operation on compatible models such as the C25 and C30. As unused old stock, minor cosmetic ageing such as surface tarnish may be present, but function and fit are as intended. This is a practical replacement for restoring or maintaining correct carburettor set-up.
Key Features:
- Genuine Villiers part for correct fit and function (OEM No. 27370)
- Sets throttle stop for accurate and repeatable idle speed control
- Designed for the Villiers B1320 carburettor; proven compatibility with selected models
- Durable machined metal construction for long service life
- Unused old stock; may show light tarnishing without affecting performance
- Straightforward to install and adjust with common hand tools
- Helps prevent stalling and hunting at idle by maintaining consistent throttle plate position
- Suitable for refurbishment of classic engines and ongoing maintenance
Typical Applications:
Used on classic small engines where a Villiers B1320 carburettor is fitted, including lawn mowers, rotavators, generators, water pumps, and compact construction or horticultural machines. Ideal when rebuilding carburettors, addressing unstable idle, or replacing worn or missing screws to restore reliable idle control.
Also known as:
Throttle adjustment screw, idle speed screw, idle stop screw, carburettor stop screw, carb screw, throttle idle screw. These terms refer to the same function: setting the minimum throttle opening to achieve a stable idle.
Fits Models:
B1320, C25, C30, C45
Alternate Part Numbers:
B1320
Product Specifications
| L&S Part No. | 27370 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | 27370 |
| Unit of Sale | 1 |
| Applications | B1320, C25, C30, C45 |
| Machine Type | Engines |
| Fits Brands | Villiers |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
