Description
Overview:
This genuine Villiers Pilot Jet (OEM No. EM790) is a precision fuel metering jet for the V Type carburettor used on classic Villiers petrol engines. Made from durable brass with a slotted head for straightforward servicing, it regulates fuel to the idle and low‐speed circuits to keep engines starting cleanly and running smoothly at tickover. Ideal for restoring reliable performance on vintage equipment, it suits popular engines such as the MK10 and MK15, and other compatible MK-series units. As unused old stock, the part may show light tarnishing or minor storage marks, but this does not affect function. A correct-specification jet helps reduce hesitation, hunting and stalling, supporting consistent performance on site and in the workshop.
Key Features:
- Genuine Villiers part for correct fit and flow (OEM EM790)
- Brass construction resists corrosion and ensures long service life
- Precision-drilled orifice for stable idle and low‐speed running
- Suited to V Type carburettors on Villiers MK-series engines
- Helps cure poor starting, weak idle, and flat spots off idle
- Simple to fit with a flat-blade screwdriver; no special tools needed
- Consistent metering supports smoother throttle response and cleaner running
- Suitable for professional maintenance or DIY refurbishment of vintage machinery
- Unused old stock; cosmetic tarnish possible without affecting performance
- Supports accurate tuning when combined with correct float height and mixture settings
Typical Applications:
Used on Villiers-powered equipment where steady idle and clean pick‐up are important, including older cement mixers, plate compactors, generators, pumps, cultivators, rotovators, mowers and light industrial plant. A practical replacement when refurbishing V Type carburettors that show wear, varnish build‐up or damage to the original idle jet, helping restore dependable running for site work, grounds care and general maintenance.
Also known as:
Idle jet, slow‐running jet, low‐speed jet, pilot mixture jet, carb jet EM790, Villiers V Type idle jet, Villiers carb idle circuit jet.
Fits Models:
MK10, MK12, MK15, MK20, MK25
Product Specifications
| L&S Part No. | EM790 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | EM790 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Key Features | - Genuine Villiers part for correct fit and flow (OEM EM790) - Brass construction resists corrosion and ensures long service life - Precision-drilled orifice for stable idle and low-speed running - Suited to V Type carburettors on Villiers MK-series engines - Simple to fit with a flat-blade screwdriver; no special tools needed |
| Fits Models | MK12 | MK20 | MK25 / C25 | MK15 | MK10 | V Type Carburettor |
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
Related Products
-
![]()
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
