Before winter, I replaced the lower unit oil and lubricated the propeller
shaft. Yesterday, I ran the motor for the first time this year for about 10
min (of course with a big bucket of water). and then stored the boat back
in the garage. Today, I saw there is oil on the floor!!! see attached
photo.

I examined the lower unit drain plug, the oil wasn't leaking from there.
Instead, it leaked from the red arrow shown in the photo. Is that normal?
Was that because I pumped too much lower unit oil in winter time?? or should
I get a professional marina to take a look? Help... The motor is a
Mercury 15 HP, 2 cycle.

Here is the photo I took today:
http://members.rogers.com/londonboy/...ak/leaking.jpg

Help...

Rob