S&S Cycle HI-4N Single & Dual Fire Ignition Module For Harley 1984-1999

More power than the stock ignition. This has a single-fire and dual-fire function built into a single module. The all-metal housing provides improved heat dissipation. Ignition advance and timing degree markings are on the metal flange. Convenient cable notch in the housing makes installation easier and prevents damage to the cable. Sensor and magnet housings are built into the all-metal back plate to protect the sensors from damage during installation. Sensor housings contain advanced flux concentrators with high-temperature-resistant samarium/cobalt magnets for accurate, reliable ignition triggering. Electronics are fully enclosed to resist vibration, moisture and dirt. Four rotary switches for ignition mode selection, advance rate, and rev limit.