GPH 346 Carburettor Lever Collar - Throttle Linkage Collar - HI0403231 by Hirobo  [HI0403231]

Replacement carburettor collar for GPH 346 linkage

This carburettor lever collar from Hirobo is an RC-scale replacement part intended for the GPH 346 helicopter linkage. The collar functions as a compact mechanical interface on the throttle/carburettor lever, helping retain linkage pins and maintain consistent geometry between the carb lever and the throttle servo.

Made for straightforward swap-in replacement, the collar preserves throttle throw and alignment without altering other components. When fitting a worn or damaged collar, inspect the mating surfaces on the lever and linkage for burrs or distortion, clean the area, then press the collar into place or secure it using the original hardware method used on the model.

During tuning the lever collar helps remove slack from the throttle linkage so throttle response stays repeatable at idle and through mid-throttle adjustments. After installation run basic setup checks such as verifying neutral position and travel at the transmitter, then perform a bench idle validation before flying.