My 2013 Husqvarna MZ5225 zero turn mower will not restart some times when I turn it off after it has reached it's full operrating tempture. It does not make sounds of trying to start, as is if there is no battery power at all. One time after failing to start, I pushed it to my garage, maybe 100 feet, I tried the key and it started. Another time i wiggled some wires at the brake safety switch and it started. Another time I wiggled wires at key switch and it stared. The last time I pushed it into my garage and tried the key two days later and it started. I have cleaned and tightened all electrical and safety switch connections, made sure the battery is fully charged, added a extra ground wire direct to starter, just incase the factory wire was not enough. I only mow two acres of grass a week, and I make sure it's dry, never wet. Any one have a suggeston??