This document introduces the operating instructions for O.S.TYPE 7M carburettor, including the composition and function of the carburettor, operating steps and maintenance methods.
This manual provides operating instructions for the O.S. Type 7M carburettor, an advanced design developed specifically for FAI F3A contest flying. It details how to adjust mixture strength separately for idling, half-throttle, and full throttle ranges to ensure optimum response and reliability.
It is for adjusting the mixture strength when the throttle is fully open.
Make sure that this is set at the mid-way position between full rich and full lean.