624-81321-21 Yamaha CONTACT BREAKER ASSY

OEM Yamaha contact breaker assembly for outboard motor ignition systems. This mechanical switching component controls spark plug firing timing in traditional points-based Yamaha ignition systems. Used in various Yamaha 2-stroke outboard engines from approximately 6 HP to 28 HP models. Related part numbers in the 81321 series serve different engine configurations. Critical component for reliable engine ignition on older Yamaha outboard models.