YSF1952 Carburetor Body for 120NC by YS Engine  [YSF1952]

The YS Engine YSF1952 carburetor body is an RC replacement part intended to restore the 120NC glow engine carburetor assembly. It supports the fuel metering system and throttle linkage and is supplied as one body to replace units that are worn, damaged, or leaking.

The body locates the needle valves, throttle shaft and the inlet passages that determine mixture and airflow. Replacing a compromised body is a normal part of maintenance when wear, stripped threads or surface defects start to upset idle or cause erratic mixture behavior. Maintain clean mating surfaces, O-ring grooves and throttle bearings during servicing to prevent leaks and inconsistent throttle response.

Installation tips: remove the carburetor from its mount, record current needle and throttle settings, move needles, throttle shaft, springs and any bushings or seals into the YSF1952, then bench-test to confirm smooth throttle action and correct needle seating before reinstalling on the engine.

Tuning impact: while a new body does not alter jetting by itself, fitting a solid replacement eliminates body-related instability and provides a stable base for fine needle adjustments and repeatable engine response during runs.