25 hp yamaha oil at exhaust area

[mcarrig3]

I have a 1995 25 hp yamaha outboard .I have a oil coming out near the lower case where the bolts go in . The oil is coming from a 1/8 in hole near the front mounting lower case mounting bolt , Sometimes a creamy oil sometimes just a dark oil , Its not coming from the lower case Is this a big concern , iIs there something I can check

 

[ACracing]

Re: 25 hp yamaha oil at exhaust area

I have a 1995 25 hp yamaha outboard .I have a oil coming out near the lower case where the bolts go in . The oil is coming from a 1/8 in hole near the front mounting lower case mounting bolt , Sometimes a creamy oil sometimes just a dark oil , Its not coming from the lower case Is this a big concern , iIs there something I can check

I have a 2002 25 Yamaha. Mine was doing the same thing, my service tech said that it was ok or normal. I cant remember why he said it was doing it, but you should be ok. Just to make sure, you may consult a professional. have a good one.

 

[Mas]

Re: 25 hp yamaha oil at exhaust area

More than likely, you're see unburned 2-stroke oil that can especially build up if doing a lot of trolling...which is normal. We are talking about a 2-stroke???

Just check lower unit oil a couple of times each season to ensure lube is not milky or showing signs of water intrusion into the gearcase.

MAS