> Mark Kinsler Wrote:
> -------------------------------------------------------
> The points will open for a short period (called the 'dwell
> angle') and then close once again as the lump rotates past.
I don't know what ignition system your bike has, but in a battery/coil ignition (Kettering) the amount of time in crank degrees that the contact points are CLOSED is the dwell angle. When the points are closed the coil is being "charged". When the points open the spark is produced.