Husqvarna 125L weedeater

Question

I'VE HAD THIS WEEDEATER FOR JUST A LITTLE OVER A YEAR, IT MIGHT HAVE 35 TO 40 HOURS ON IT AT THE MOST.. BUT TODAY WHEN I GO IT OUT, IT CRANK FINE; RAN FOR ABOUT 3 MIN. AND WENT DEAD. FIRED IT UP AGAIN SAME THING; BUT THIS TIME I NOTICED IT WAS REAL HOT. WHAT COULD BE WRONG ? THE MIXED GAS IS FINE,
TIM