Hirobo HI0403231 Carburettor Lever Collar for GPH 346 helicopter linkage  [HI0403231]

Carburettor lever collar for GPH 346

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

Designed for straightforward swap-in replacement, the collar helps preserve throttle throw and alignment without changing other components. When replacing a worn or damaged collar, check the mating surfaces on the lever and linkage for burrs or deformation, clean the area, then press the collar into place or secure per the original hardware method used on the model.

In tuning sessions the lever collar plays a support role: keeping slack out of the throttle linkage preserves repeatable throttle response during idle and mid-throttle adjustments. Use basic setup checks after installation, such as verifying neutral position and travel limits at the transmitter, then perform an engine/idle validation on the bench before flying.