I just bought my first bike, a 2009 Ninja 250 with 5k. I took it on the hwy and after riding for about 10-15 min going 65mph, all of sudden I lose all power and drop to 30 mph like that and pull over to the shoulder and start over again. This has happened more than once. Am I doing something wrong, should I down shift...let the clutch in a little. It rides wonderful otherwise. Please help before I get rear ended on I-70.