My brothers 30hp EFI is leaking LU oil out of the weep hole, in my experience 9/10 it’s a shift shaft seal. Oil is pure and clean, he actually just redid the prop shaft seals and all is well but it drips very slowly. How in the hell do you find Tohatsu parts reliably? To be honest it’s a rebranded Merc, I found that out the hard way, but trying to find parts is rough. Anyone have a reliable source? Also a schematic would be great, even those are hard to find.