Zenoah K330481150 Diaphragm Replacement for Carburetor Service  [K330481150]

Replacement Diaphragm for Zenoah Engines

This RC replacement diaphragm is supplied without packing and serves as a direct service part for Zenoah engine spare parts. It functions as the consumable membrane inside diaphragm-type carburetor assemblies and is intended for routine maintenance or part renewal.

Installation is straightforward for workshop use: remove the carburetor cover, confirm or transfer the correct gasket if present, seat the diaphragm flush against the mating surface, then reassemble and test for an airtight response. As this item ships without packing, retain the original gasket or order the correct packing separately before final assembly.

A worn diaphragm often causes unstable idle or uneven throttle response. Replacing the diaphragm is a common first step to restore steady fuel metering; after fitting, check idle and needle settings on the carburetor while running on a bench under controlled conditions.