On my 99 baja hammer 7.4L MPI I have noticed alot of oil in my bilge. I have filled my drive oil resevoir up once. I noticed that the connection at the resevoir may have been leaking, so I put a better clamp on it. Seemed to have stopped the seepage there. I traced the hose around the engine to where it goes into the stern drive. There is supposedly a 90 degree fitting it hooks up to. Very hard to see, if impossible and hard to feel. I have no external oil leaks from my drive. I am led to believe this is an internal leak. Two things: can I fix it (not a mechanic) and how much am I looking at in time and $$$ for the shop to fix this? Is this a major problem or should I just keep filling the resevoir?