Description
Overview:
The Throttle Shaft - Robin Part - RB246 62531 08 is a precision-machined steel shaft used inside the carburettor to open and close the throttle butterfly, giving accurate control of engine speed. Built for small petrol engines commonly found in construction and garden equipment, it helps keep machines running smoothly under varying loads. Its durable, corrosion-resistant finish and tight manufacturing tolerances support consistent idle, clean acceleration, and reliable top-end speed. This shaft is well suited to Robin/Subaru small engines used on compact generators, plate compactors, pumps, mowers, and similar tools. As a service replacement for a worn or bent shaft, RB246 62531 08 helps prevent unwanted air leaks at the throttle bore that can cause poor starting, erratic running, and excessive fuel use, restoring dependable day-to-day performance.
Key Features:
- Precision-machined steel construction for strength and long service life
- Smooth, low-play operation helps maintain stable idle and consistent governed speed
- Corrosion-resistant finish to withstand moisture, dust, and fuel vapours in tough site conditions
- Direct replacement pattern to suit the original carburettor layout on Robin/Subaru small engines
- Supports precise engine speed control for better throttle response and load handling
- Helps reduce air leaks at the throttle bore, aiding easier starting and cleaner running
- Compatible with existing throttle levers, return springs, and linkage hardware (where fitted)
- Straightforward installation during routine servicing or carburettor rebuilds, minimising downtime
Typical Applications:
Used on small engines powering compact generators, plate compactors, water pumps, pressure washers, lawnmowers, tillers, and light construction tools. Ideal when refurbishing a carburettor, addressing rough idle, hunting under load, or poor fuel economy caused by a worn throttle shaft. Suitable for both professional site equipment and domestic garden machinery.
Also known as:
Throttle control shaft, engine throttle shaft, carburettor throttle shaft, butterfly valve shaft, carb throttle spindle.
Product Specifications
| L&S Part No. | RB246 62531 08 |
|---|---|
| Unit of Sale | 1 |
| Fits Brands | Robin |

