60L Mixture Valve Assy OS29083600 for O.S. Engine Carburettor Replacement  [OS29083600]

Key features and fitment notes for the valve

This is an RC-scale mixture control valve assembly intended for use with O.S. carburettor parts and related replacement components. The 60L designation identifies the valve size and its role in adjusting fuel/air mixture for small nitro RC engines.

When installed the assembly offers an external access point for fine needle and idle adjustments without having to swap the carburettor body. During installation make sure the valve is aligned with the carburettor linkage and that it moves smoothly throughout its travel to prevent surging or lumpy idle.

For tuning, approach the valve as a precision control: apply tiny changes, monitor engine reaction, and finalise mixture and idle with the engine warm. If fitment is unclear, compare the valve mounting and contour with the original carburettor parts before fitting.