leaking gear oil

[dirtyolman]

Have a problem with this new motor, it's leaking gear oil out of this hole I have plugged up.

Dunno why it's leaking unless i'm overfilling it and that's not possible, i'm using Lucas 85w gear oil.

It leaks whenever I ride it, i'm thinking a bad seal?

here's a pic




TIA:)

[Scooter Elements]

what i do is i empty it of gear oil take it all out. Try out the area that its leaking from and apply some Grey Silicone gasket maker and let it set for say 12-24 hours then fill again with oil and start riding. Mine leaks also and thats what i did and no more problems. Mine is a GY6 150cc engine tho. yours looks alot different. I hope this helps tho