2013 300r spark problems

[Gibby]

Went riding yesterday started up and ran fine for about 2 miles and blahh just died. We figured it fouled the plug but when we put a new one in still no spark.
After about 10 more minutes and pushing back toward the truck Tryed it again and if fired up and rode all the way back to truck turned it of at the truck and when I went to recrank no fire. So I disconnected the kill switch and it fired right up so naturally thought that was my problem and got back on the trail, 3 miles in it died again. Intermittent spark problem any suggestions? I hate to buy a CDI if the coil is bad and vise versa. Any hints on how to trouble shoot or any simalar storys with a 2013?