O.S. Engine OS29081719 Carburettor Retainer — Precision Linkage Mount  [OS29081719]

Precision retainer for model engine carburettors

This retainer acts as a compact mounting component for a carburettor assembly on RC-scale engines, helping to keep linkage alignment steady during operation and setup. It is supplied as a replacement or service part compatible with O.S. engine carburettors and intended for model engine use only.

Fitting is simple: the retainer positions around the carburettor body or linkage area to reduce lateral play and preserve throttle geometry. When installing, check that the throttle arm and linkage remain correctly aligned with the retainer fitted, avoid over-tightening screws which can restrict movement, and verify full throttle and idle travel before testing outdoors.

During tuning the retainer aids repeatable throttle response and a stable idle by limiting unwanted movement at the linkage pivot. Use it when setting needle positions or throttle stops to ensure adjustments stay consistent between runs.