
TOP PERFORMANCES Key (manufacturer reference 9921770) — a simple and essential wear part for ignition. This fine key of 0.6 mm is intended for AM ignition systems: it ensures the positioning and retention of the rotor/magneto on the engine shaft, preventing any axial play that could disrupt the timing.
An essential spare part when servicing the ignition or the magneto. Always check the condition of the housing and rotor before installation: a worn or poorly fitted key can generate play and ignition faults. This TOP PERFORMANCES key provides a simple and precise solution to restore proper mechanical timing on compatible models.