61F and 61G Carburettor Mixture Control Valve Assy - O.S. Engine OS29088320  [OS29088320]

Replacement Mixture Valve Overview

This replacement mixture control valve assembly fits 61F and 61G carburettors and serves as the adjustable interface for setting the air-fuel balance entering the engine. It is supplied as a service or spare part for model-level repair and tuning tasks.

Fitting is familiar to anyone who has carried out basic carburettor maintenance: remove the carburettor cover as per the engine service instructions, install the valve assembly in the original location, and verify that linkages and fasteners are correctly positioned. Check compatibility with your specific 61F or 61G layout before installation.

During setup, make conservative incremental turns on the mixture control and evaluate the engine in controlled tests. Let the engine reach regular operating temperature before locking in final mixture settings, and restore any sealants or thread locker advised by the engine's service manual.

For upkeep, inspect the part for contamination when servicing the carburettor, clean with non-reactive solvents, and change any deteriorated seals. This component is intended for model-scale use only.