S&S HI-4N Ignition Module




  • Single-fire and dual-fire function built into a single module
  • All-metal housing provides improved heat dissipation
  • Ignition advance and timing degree markings are on the metal flange
  • 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
  • Made in the U.S.A.
  • Not for fuel-injected models

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