Compu-Fire, ignition module. Electronic advance, single fire

For electric start models only. Fixed single fire and selectable single/dual plug. Selectable advance & RPM limiter. With 8 advance curves and 8 RPM limits, from 6000 up to 7500 RPM, it can be adjusted to fit your specific engine. Easy selection by a rotary switch on the ignition unit. Module comes with a built-in static timing light and feature a extended temperature and low voltage operation with soft-start circuitry for easy starting. Note: A tach adapter (MCS 538408) is required to correct tacho-output when using single fire ignition, for correct RPM representation.

Fits: > 70-99 Big Twin (excl. Twin Cam, excl. injection models); 71-01 Sportster (excl. 1200S) (NU)