Brown sludge comming out of prop

Corona kid

Cadet
Joined
Feb 11, 2012
Messages
9
Hello everyone
I have a 1992 evinrude 9.9hp 2stroke, and my problem is
I when I had the motor running in a large garbage can I noticed
A brown substance on top of the water. After I took the motor
Off and had it on the stand and a few hours later came back
And noticed a fist size pool of brown sludge on the ground
The leek was comming out of the center of the prop and when I
Turned the prop I seen the sludge come from the back of the
Pro,wile the prop is on the boat . Can any one give me some
Info on what this is and what the cause may be? And if posable
How much to fix the problem if one. Thanks to all you're info
Is very apreciated thank you the Corona kid!
 

toddschubert

Chief Petty Officer
Joined
Sep 3, 2011
Messages
504
Re: Brown sludge comming out of prop

Just oil from exhaust brown from mixing w water. You may have a higher than norm (50:1) ratio. Refuel with correct ratio then look again. This could be a normal situation
 
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