I have had my bike for 4 days now, and it stalled twice today for no reason. I was riding down the trail twice and it just completely cut out (like the switch got shut off). I tried starting it with no luck for a minute or two then it started and ran fine. It did this one other time today. Anyone else ever have this happen? The bike is stock and I wasn't going through any deep water.

 

I had the same problem after removing the front plastic to adjust the valves--turned out I hadn't completely re-connected one of the wires going to the CDI. Check all of the connectors under the front end...switch, CDI, etc. Also check the wires going to the left clutch perch housing and make sure they're connected. BTW, mine has been known to sputter here and there when running gas that's been sitting around for a while. If it continues and it's new, I would take it back to the dealer and have them check it out. Hope this helps...