I have put the attached document together to help diagnose the no spark situation that many seem to suffer from.
I am no expert so it may not be 100% accurate or use the correct terminology. I would therefore welcome any feedback or suggested corrections.
The coil pack used in the document comes from a running mini.
edit: the tachometer relies on a signal sent from the coil, logic would say that a faulty coil may affect the tach reading.
Edited by Fast Ivan, 06 May 2016 - 03:08 PM.