Ran my '07 450 a short time today. I went to restart and as soon as I touched the starter the display when blank - no power. Heard a small pop left side by fuses. Checked the two 30 amp fuses - okay. After a couple of hours I noticed the display was back on. Touched the starter and same thing - small pop sound and display went blank. Only electrical thing I've done in the last five months is replace the ignition switch (aftermarket). I could put the original back in. Where should I start troubleshooting?