I have a 1995 150 O.P. that has oil leaking from under the engine cover running all the way down the outside of the lower unit puddling on the ground.I have not been able to find out were the leak is coming from and would like to what the problem is and how to fix it.The last few times I have been out I started to notice it seems to smoke alot more than normal,the smoke is white if this helps.I have not run the boat since the leak started fearing I might damage the engine.I should also tell you the engine sat up for about a year,then after using it this summer this problem started.Any advice would be helpful,thanks.