Unless you're a complete numpty, hard to see how you could have accurately measured but still over-filled the oil.
Is it possible you disturbed this hose you've mentioned with the spark plug wrench? It doesn't make sense for a hose not to completely close a hole, as you described it.
Maybe a photo would help us understand better?
Exactly I was very meticulous with the amount I put in so I think I did it right- just assumed I overfilled since the oil was coming out.. All looks ok quantity wise (see first pic below)... The second picture is the hole where the oil is coming from I referred to before. There is this piping coming from the hole and there is a gap around the hose but that's ok I think. I sticked my finger inside this hole and oil mixed with water sits inside. It's not as dense as oil alone, maybe it's the water from undone clip coming inside and getting this kind of oil water mixture?? The hose is securely fastened there is no movement whatsoever. I had some issues removing spark plugs which is close by to the hose but don't think I messed up there since the hose is very secure. I forgot to tighten the little clip where the hoses are coming together overlapping each other. Maybe that's it? If this hose carries oil which I don't think it does the undone clip could have cause the oil there.
Also the first thing I replaced was air filter. When removing fuel tank is it possible that if I bent the fuel hoses and others coming from the tank in this area this could cause the leak?? I doubt it as those are two separate areas.
THanks a mill!
See the hole I referred to and the metal clip I forgot to tighten. When I put my fingers inside I can feel oil/water sitting there Could it be it??