Need help!!2000 mxz 700

i have a 2000 ski doo mxz 700 the other day i put new plugs in it and if ran fine, today i started it up let it warm up and when i took off i fouled a plug, so whatever i put a new set in and it ran fine...getting on down the road it shut off, i thought it was maybe the teather switch or just the kill switch, but i cant quit figure it out, because it will die out, and i can start it up in one pull, and it runs fine again until it dies. sometimes it will run for 10 minutes and sometimes it ill run for 5 seconds, i cleaned the carbs and have tried diffrent plugs again but still think it is coming from the kill switch is the only thing i can think of....someone please help me....thank you or could it possibly be the tether switch at all??

to try that is there anyway to reroute the kill switch?? thanks

well ill look around , thanks