30 HP Yamaha leaking oil

[browntroutking]

My 1990 30 Yamaha leaves a bad slick on the water all the time. It seems to be coming from the leg as I have checked the engine closely and there are no leaks. Maybe from the split near the bottom of the leg ? For sure not the drain plugs.

 

[zzzzz]

Re: 30 HP Yamaha leaking oil

might be residue built up and coming out of exhaust at prop...try a decarbbing(remove carbon deposits)

 

[Knightgang]

Re: 30 HP Yamaha leaking oil

I have a Suzuki DT115 that seems to do the same thing. Everytime I put it in the water, my kids say "Look, daddy's is making colors in the water." I figured it was from oil that has burned through and is in the exhaust ports. Never caused a problem. I am running seafoam now, I will see if it clears up over time.