My bike model is 2004 MV agusta F4 750s . I have check Electronic Circuits ,Wiring harness Cables Loom and sensor is all ok but i check ECU no signal go to the Coils when i try start the bike . I have check the coils is ok , just ECU no signal give the coils so no High-voltage go to Spark Plug and i cannot start the bike . I have change Ignition Key set before but this key set is come from 05 MV Agusta F4 1000 , have any affect for bike ?? I cannot start my bike now , the problem is ECU or ignition key set ??