Hi,
A question for CH .
I have a old CH ignition which was used with OS 91 4T (methanol).
I have a new project and want to use it with a YS110 4T methanol.
Form my memory YS don''t like much advance. In your early doc. (15 ears ago) was wright ~20-24 deg max advance for mechanical CDI and idle point fire on TDC.
How can i use your External Syncro Spark module ? If i will put the magnet 20 deg Btdc where will be retarded puint ?

2. the unipolar hall sensor is like an On/Off with a hysyeresis curve between on and off stade.
This time is calculated for initial retard and afrer this when the engine fire the time calculated is between two consecutive "ON" ?