O.S. Engine OS49415000 Carburettor Gasket GT15HZ - carburettor spare for RC glow engines  [OS49415000]

Carburettor gasket role and installation

This O.S. Engine OS49415000 carburettor gasket is an RC-scale replacement part designed for use with the GT15HZ carburettor assembly. It functions as the sealing interface between carburettor components to preserve consistent fuel and air metering in glow engine setups.

The gasket's purpose is purely mechanical: to maintain contact surfaces, prevent leaks, and support predictable needle and throttle response. When inspecting a carburettor during routine servicing, replace worn or flattened gaskets to restore a proper seal before tuning fuel mixtures.

Installation is straightforward for hobbyists familiar with glow engine servicing. Remove the carburettor from the engine, disassemble the mating surfaces where the gasket sits, clean both faces of residue and old gasket material, and fit the new gasket so holes and ports align precisely. Reassemble using correct torque on screws to avoid distortion of carburettor bodies which can compromise the seal.

For tuning, a fresh gasket helps keep airflow and fuel paths stable, making needle adjustments more repeatable. Check for any fuel smell, visible seepage, or idle instability after reassembly; these indicate either misalignment, damaged gasket, or need for further inspection of other carburettor parts.