I've inherited a 1992 Yamaha 25hp 2 stroke - C25ELRQ. This outboard has low compression (about 75 psi in each cylinder) and one thing I tried was putting Seafoam Deep Creep in the cylinders to loosen things up. I noticed that the liquid drains out a small hole in the front-upper area of the lower unit. From what I can tell, this hole is supposed to be there but not sure of its purpose or if all this liquid should be draining out of the hole. I've added a picture for reference. It's hard to make out but there is a small hole just above the bolt. You can see oil draining from that area.
Anyone know if this is normal? Maybe this is a sign of bad crank seal or other gasket?
Anyone know if this is normal? Maybe this is a sign of bad crank seal or other gasket?