Amagi

Hi to all. I’m new on this forum and I need some help. I have a 2008 arctic cat 700 xtx prowler. I have no spark. I have done the following repairs. changed piston and cylinder change CDI change ignition coil and spark plug changed speed sensor changed stator and flywheel Changed voltage regulator after all this I still have no spark. i have verified all fuses and they are all good. please help. I would like to get it running.