eno33

Alright guys, I have a 2003 Yamaha YZF-r6 ... after riding it for 15-20 mins the thing dies... the engine light pops on and wont turn back over... I took it in to the yamaha dealership to get fixed and they said it was the ignition switch... so i took it in and they put a new one in... well now iv had it for 2 days and i was coming home from school, parked it... 45 mins later i had to head to work, went to turn the motorcycle on and it did the same thing as it did when it died... but like in 2 hours it will run again.. any suggestions on what might be causing the problem? Thanks, Travis