Saturday, February 5, 2011
Key engineering advances #7: Electronic ignition
At least one inventor, in Denmark, managed to prototype a working CDI (capacitor discharge ignition) in 1965. His prototype was installed on a 90cc Kawasaki, which might have been his problem: those bikes already had reliable ignitions with conventional points. A few years later, however, a large English bike shop – Boyer of Bromley – finally got tired of the notoriously unreliable Lucas ignitions their racing team’s Triumph Bonnevilles. They contracted Ernie Bransden to design an electronic ignition. Their Boyer-Bransden electronic ignitions are still sold to people wanting to make old bikes start and run more reliably.