Zenoah K330481150 Diaphragm Replacement Part  [K330481150]

Diaphragm for Zenoah engines

This is an RC-scale replacement diaphragm supplied without packing, intended as a direct service part for Zenoah engine spare parts. The diaphragm functions as a consumable membrane inside carburetor assemblies and is used during routine maintenance or part replacement.

Installation is straightforward for hobby workshop use: remove the carburetor cover, transfer or verify the correct packing/gasket if available, fit the diaphragm flush with the mating surface, then reassemble and test for airtight response. Because this item ships without packing, retain the original gasket or order the correct packing separately before final assembly.

For tuning and troubleshooting, a worn diaphragm can cause unstable idling or inconsistent throttle response. Replacing the diaphragm is a common first step in restoring steady fuel metering; after replacement, verify idle adjustments and needle settings on the carburetor under controlled bench running conditions.