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Ignition system »HI-4N« by S&S

Item №

A single/dual fire ignition system with many state-of-the-art features built in a very compact unit. It has four rotary switches for mode selection, advance rate, and rev limit (1500-9900 rpm). Modes are:

  • single fire
  • dual fire
  • OEM curve
  • race curve
  • kick start
  • electric start

The aluminum housing protects against vibration, moisture, dirt and improves heat dissipation. Its flange features degree and advance direction markings on the flange. Installation becomes easier with the convenient cable notch in the housing which also helps to prevent cable damage. Built onto the back plate, the sensor/magnet housings protect the sensors from damage during installation. The sensor housings contain advanced flux concentrators (intensify magnetic fields) with high temperature resistant samarium/cobalt magnets for accurate and reliable triggering. For street use the manufacturer recommends coils with a minimum of 2 Ω. Coils with 4Ω or higher may be used but may not produce optimum output.

  • fits Big Twin 1970-1999, Sportster 1971-1990
  • use with 12 V
  • primary resistance: 2-4  Ω
  • gross weight: 249 g

S&S HI4N Fitment

On Sportster models later than 1991, the HI-4N does not fit due inadequate clearance in the ignition cavity.

net price*
* United States of America: Tax free shipping. Please check your local import fees.
In stock. Ready for immediate delivery from our Würzburg, Germany warehouse
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