I’ve got a 2018 kx250f. Runs great, however, it will not start. Engine is newly rebuilt top to bottom. Kick it all day and won’t start. Hook a 12v battery to it and get no fault codes. Fuel put runs and it will start and run as long as it’s connected to 12 volt battery. Hook condenser back up and it’ll still start and run. Ur over time it’ll do the same thing again. Anyone have any ideas what’s up. Bad condenser? Thanks for the help..