Engine ran fine, idled for 15 min, I put it in gear and after a short time it just died. Then I could not get the thing to kick over. I put the fuel in the carb and it started fine, then died again. When I got home I notice what appeared to be oil (and smelled like gas) had seeped out between the seam of the trim housing assembly and the Drive shaft house assembly. I pulled the lower unit and it looks like oil had come down the drive shaft assembly. The top on the motor looked fine (no oil or gas spil). I don't see the leak anywhere. I am continuing to check fuel lines but no luck so far. Any ideas on this? Thanks in advance.