Compu-Fire Ignition Module. Electronic Advance for Harley-Davidson

Only for models with electric start.
Selectable single/double burner and/or single/double socket.
Selectable RPM and advance limiter.
With 8 advance curves and 8 RPM limits, from 6000 to 7500 RPM, it can be tuned to suit your specific engine.
Easy selection via a rotary switch on the ignition unit.
The module comes with a built-in static timing light and features extended temperature and low voltage operation with soft start circuitry for easy starting.

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