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
- fits Big Twin 1970-1999, Sportster 1971-1990
- primary resistance: 2-4 Ohm
S&S HI4N FitmentOn Sportster models later than 1991, the HI-4N does not fit due inadequate clearance in the ignition cavity.
Have any questions?
Our service team will be glad to help out: Mondays - Thursdays 09:00-16:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: firstname.lastname@example.org