Black goo dripping from exhaust port

mrom1234567

Petty Officer 3rd Class
Joined
Mar 20, 2002
Messages
96
There is black goo dripping from my exhaust ports on my 1986 155hp Johnsons. I noticed that it seems more than usual this year. Could it be contaminated oil? Or is this normal for an engine this old. They seem to run very well. Are there treatments for gas that is stored for long periods. My reserve tanks is about 1-1/2 years old. Should I mix with new fuel or pump it out?<br />michael
 

fishthebay

Petty Officer 2nd Class
Joined
Aug 17, 2001
Messages
180
Re: Black goo dripping from exhaust port

This seems normal. Its unburned gas/oil mix. Mine does it all the time and I have read on this board similar people experiencing the same thing. I wouldn't worry.
 
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