DDM Walbro Carburetor Metering Diaphragm Assembly #AV499

DDM Walbro Carburetor Metering Diaphragm Assembly – #AV499

The DDM Walbro Carburetor Metering Diaphragm Assembly #AV499 is a precision replacement diaphragm assembly for Walbro carburettors used on RC aircraft petrol engines. The metering diaphragm is a critical component in the Walbro fuel metering circuit, regulating fuel delivery in response to engine demand. A worn, cracked, or hardened diaphragm is one of the most common causes of carburettor-related running issues on petrol RC engines.

• Part Number: AV499
• Brand: DDM (Dirt Devil Motorsports)
• Compatible Carburettor: Walbro carburettors (as fitted to many RC petrol engines)
• Component: Metering diaphragm assembly (complete)
• Material: Fuel-resistant synthetic rubber / membrane
• Application: Replacement metering diaphragm for Walbro-carburetted RC petrol aircraft engines
• Symptoms of Failure: Hard starting, poor idle, inconsistent throttle response, rich or lean running, fuel leaking into carburettor body
• Installation: Carburettor disassembly required – replace as part of routine Walbro carburettor service

A genuine service part for Walbro carburettor maintenance — the DDM #AV499 metering diaphragm assembly restores your Walbro carburettor to factory specification, eliminating the frustrating running issues that a deteriorated diaphragm causes and bringing back smooth, reliable engine performance.