Ignition Kit, Triumph/BSA Twin (Boyer)
Boyer Bransden Micro MarkIV ignition kit designed to work with standard coils. No more points to mess with!
Suitable for Triumph and BSA Unit twins, 12 volt.
The Micro MKIV is a contactless ignition system utilising an advanced and patented trigger switching system and featuring electronic, advance and retard. Engines function best with a retarded spark for starting and low revs, but need ignition advance to run at high speed. The Micro MKIV’s analogue system simply advances the spark at a set rate from fully retarded to maximum advance, as engine speed rises from zero to 4,000 revs. Thus eliminating the inaccuracy of mechanical advance/ retard units. All units are guaranteed for five years.