O.S. Engine OS44982200 Carburettor Rotor 61P FSa-110-P replacement rotor for RC carburettor assemblies  [OS44982200]

Carburettor rotor for RC engines

This O.S. Engine carburettor rotor is an RC-scale replacement part intended for use inside compatible O.S. carburettor assemblies. Its role is to restore or maintain the rotor element of the carburettor where wear or damage affects throttle response and fuel delivery characteristics. The product is identified by the factory model code OS44982200 and the internal designation 61P FSa-110-P.

Installation is straightforward for hobbyists familiar with nitro RC engine servicing: remove the carburettor from the model, disassemble the carburettor body following the manufacturer's service steps, replace the rotor while noting orientation and indexing marks, then reassemble and bench-test for smooth movement before reinstalling. Proper reassembly and a short break-in run help verify idle and throttle response remain consistent.

In tuning workflows the rotor is a service item rather than a tuning dial; it supports consistent fuel metering across the throttle range. After replacement, check needle valve settings and idle adjustments as normal, and perform incremental tests under load to confirm the engine reacts predictably. This part is intended for RC hobby use and not for full-size vehicles.

Use this rotor as a direct replacement when servicing O.S. carburettor assemblies to restore consistent throttle action; verify fit and function during post-install testing.