2003 predator 500 no spark

I have a 2003 polaris predator 500. I recently bought the bike from a guy. We took it for a ride after doing some needed maintanence and half way through the battery blew up. I bought a new battery and now it will not start up. The kill switch and ignition switch is not the issue. There is NO spark coming from the plug (which is new).
Any insight on the issue??