I have a honda BF40 ..bought new in '04 .. ever since I've owned very little water comes thru system. Have replaced

Oil was clear..and was not overfilled... Let me further explain the problem.. I had winterized the motor ( changed oil, drained fuel ) last fall .. today when I put it back in the water for the first time, I started it, and ran it well for about 2 minutes..then the overheat alarm went on.. I slowed down, and checked if water was coming thru the cooling system . It was not. So then I shut it down and let it cool for a couple minutes, rthen restarted.. 1 minute after retartin, alarm came back on and I noticed oil runing down from from under motor cover.. I shut it back down, waited and tried again for a few seconds.. same situation repeated.. So my question is: What happened? Did the overheating blow or crack something? Yes I will check the thermostat and water pump, and they may be faulty.. but WHAT caused the blown oil ??? Did I cause a major catastrophy by running it overheated for 20-30 seconds ?? What is your diagnosis??. thanks

I am sorry, but it appears that no one is reading, or understanding my question...

Yes it did overheat.. No the oil is not milky... No the oil was not overfilled.

but YES oil is leaking out of someplace on motor head and running down in to the water...

What caused this to suddenly appear ? I had just launched the boat after it's over- the- winter storage... Obviously something happened to cause the leaking oil

Please advise various possibilities.. cracked head? ruined motor ? blown gaskets? Have you had any experience with this type thing before??

Would overheating crack the block??? that's pretty unusual isn't it? This motor has very few hours on it, and has always been well maintained...

Well if no milky oil. and no cracked block, and no overfilled oil, etc etc... what has caused the loss of oil ??? This motor ran fine last year when I put my pontoon in storage.. I launched it yesterday, started it up, and ran it no longer than one minute or so, the overheating happened , and the oil leakage happened... I don't have a clue.. do you??