Yamaha 25 problem

[cajunyoung]

i have a 25 3cyl that has been sitting up for about a year and a half after having lower bearing and piston replaced (from rust seizer in bearing). i have been working on my boat and unable to use it. i finally got it running yesterday and found after shuttting down that i was getting black oil leaking out of a small hole on the underside of the cavitation plate just above the prop. the hole is factory drilled but i have never had any oil out of it before. i also had water coming out of several holes in the gearcase, which may be normal, but i just don't remember if it did that before. anyone have any ideas why the oil leak? the motor ran for about 10-15 minutes on the hose with no problems. thanks to anyone who can help.