I have a 2013 Polaris sportsman 500 ho carb model. My unit has not been charging and rpm gauge not working. I removed the center piece in front of steering to acces fuses and voltage regulator. I clean and checked all fuses, and check power going to voltage regulator. After putting back toether, I would turn the key on and it would take a few seconds for it to get power, the atv would start and run, as soon as I mashed the hand brake it would die. After doing this several times it will not power up at all now

I’m gonna check that this evening, hopefully will be simple