I was jump starting my bike because I haven’t started it in a while and the battery didn’t have quite enough juice in it to get it going so I hooked the cables to my riding mower to jump it. But when I went to connect them to my bike I accidentally reversed them and there was a quick spark for a second and then after that the bike has had no life at all. I bought a new battery. No change. All fuses showed good continuity. My bike speakers turn on when I connect them to the batter so I know the new battery is good. But the bike shows absolutely no signs of life in any way. What’s the next step here? Thank you.