gmotor revving high and then idling normal

GoldenMotor.com

blckwlfny1

New Member
Jul 14, 2010
128
1
0
new york
my ktm 50 motor was running fine and then, at idle it started gradually revving higher and higher (as if I was slowly turning the throttle) and then it would drop back down to normal only to do it again. it would take about 5 seconds to complete each cycle.
whazzup?