My son's Panther 125UT is spewing oil out of the rubber over fill hose to the point that you can't see the oil in the check window. Also, the motor idles very high and " washes out" when you give it throttle. I checked the throttle cable, cleaned the carb, check the plug....everything looks good. Any advice would be appreciated.

 

No one knows why it would be pushing the oil out??