How does the CDI work?
A#14:The CDI receives the electricity provided by the stator’s ignition circuit, and when it receives a signal from the pickup coil telling it the engine’s RPM and the piston’s location relative to TDC, the CDI then sends a current signal to the coil, which in turn fires the spark plugs. The electronics within the CDI will fire the spark plugs before (advanced timing) or after (retarded timing) the pistons reach TDC depending on engine RPM, to provide the most efficient spark and a clean combustion process. Banshee CDI’s have NO rev limiter, as some 2-strokes and most 4-stroke CDI’s have, that will cut out the ignition or otherwise prevent the motor from exceeding a preset RPM. The TORS system, which is independent of the CDI (see Q#20), performs a similar job by limiting spark if the emergency brake is “on” or the carbuerator slides are open when the throttle is closed, but the CDI itself does not limit RPM. Don’t be fooled! The only rev limiter on a Banshee is the stock pipes, the CD