I have oil dripping out of the oil tank vent tube when trying to kick over. Bike started doing this after i rebuilt the carburetor and replaced the clutch, which involves removing the oil pump. I did an 80 mile ride, bike ran so so bogged down didn't want to start after a lunch stop. I tried to start it Saturday, no go and a puddle of 2 stroke oil under the bike after kicking it over many times. Tank is not over filled, it did do this before my ride and bike does smoke at higher rpm's.