DS1-2 Dyna S ignition system

Upgrading your classic Honda four-cylinder to a Dynatek Dyna S ignition system is one of the best things you can do for long-term reliability. This electronic ignition replaces the old points system, providing a much more consistent spark and eliminating the need for constant adjustment. It fits the 1972 to 1977 Honda CB500, CB550, and CB750 models. To get the most out of this setup, Dynatek recommends using 5-ohm dual tower coils, which help ensure a strong, hot spark across the entire RPM range. It’s a straightforward installation that makes a world of difference in how these vintage fours start, idle, and perform on the road.