website problem fix. the st chips are signal prossesers that can be used with a cimple cdi ingition or Kettering ignitions. cdi igntions are simple to make are they still use a transformer to up the voltage they just add a capasitor to help give the ignition a extra boost. you can wind your own coil for a cdi ignition and it only costed a few bucks. the other componets used are a few bucks to. what the st chip dose it make sure that you get the hostest spark each time it fires. i will have a full set of plans in a few days for the st chip. if you want a standard pre-programmed microprosser to use with a simple cdi i should have that i a few weeks. thanks and keep asking questions.