The well known Crane HI-4 ignition has been one of the most popular performance ignitions for 1970-’99 “cone” style engines for many years. So meet the new kid in town, the Crane HI-4N with updated features for ease of installation and set up, and for greater reliability.
1-Piece machined aluminum housing reduces vibration and improves heat dissipation and reliability
The bullet proof all metal housing of the HI-4N provides improved heat dissipation, and features degree and advance direction markings on the flange. A convenient cable notch in the housing makes installation easier and prevents damage to the cable. Rugged sensor/magnet housings are built into the all-metal back plate, protecting the sensors from damage during installation. The sensor housings contain advanced flux concentrators with high temperature resistant samarium/ cobalt magnets for accurate and reliable triggering. The electronics are fully encapsulated to resist vibration, moisture, and dirt, and are mounted directly to the metal housing, which serves as a heat-sink.
The new HI-4N ignition has four rotary switches for mode selection, advance rate, and rev limit. These switches provide accurate and repeatable settings.
Improved kick start algorithm designed to start as easily as points
BCD switches with solid detent and legible marking allow easy and repeatable adjustments of mode, advance rate and rev limit
Single-fire and dual-fire function built into a single module
Flexible wiring harness makes installation easier
Initial timing marks allow precise adjustment and re-installation
Sensor covers integrated into housing to provide protection during installation
Fits 70-99 Big Twin; 71-02 Sportster Models