I can't seem to get her started. I changed the stator, starter button, starter relay, rectifier, got a new batter and changed the starter motor. I turn the key everything comes on but when I try and start her there is no sounds or dimming in the lights. A few weeks back I hook a car battery along with the motorcycle battery up to it because my old battery was dead but I accidentally switched the positive with the negative melted the battery and blew one of the fuses, i did replace that fuse as well. i was able to get her started through a push but that slowly died off as an option. I have to clue what to do. Any suggestions?

Test the solenoid with 12 volts directly to the wires that actuate it,.
Hook up a test lite & hit the starter button & see if youre getting Voltage there.
Make sure the decomp controller is hooked up, under the seat, a loose connector there & its not gonna do hoot.,