these guys regularly repair bosch cdi units....
Systems Consulting...Automotive Electronics
you also need to use the correct ingnition transformer "coil" which is differnt than the coils currently sold for this application...
the correct number is for the bosch ignition transformer is 0.221.121.001....
don't use a regular coil like the blue or the silver replacement one..they will lead to premature cdi box failure...
see here for more info:
Ignition Coil advice......
the correct one is on the left and is shorter than the typical bosch blue/black coil
