I have a newer (2-3 years) ancient Yahama 4 stroke 25 horse boat motor. Yesterday it ran fine on the way out to go duck hunting. We got ready to go and it wouldln’t start. It had full tank of gas and hot battery. We walked it out of the woods and took the cover off. The oil is a milky drippy color (like auburn water) and the motor will start but white smoke comes out where the prop is. What in the hell is incorrect??? Also the same auburn substance is coming out of the air intake under the motor cover. If you need more details please question!
Run perfect on the way in. But when it came time to start home it wouldn’t start a like. It didn’t overheat.
It was pumping water also
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Category: Uncategorized
Tag: 3 Years, 4 Stroke, Air Intake, boat, Boat Motor, Brown Water, Duck Hunting, Full Tank, h.p., Hell, Motor, Newer, White Smoke, Yamaha, Yamaha Boat, Yamaha Motor
D M says:
you have water in your oil………drain it and place new oil in hopefully it will subdue be ok………..you may have a terrible gasket somewhere
ERIC E says:
You definetly have water in your oil, change your oil and run it a small time to see if it gets milky again. With white smoke coming out of your exhaust it sounds like you have a blown head gasket. Was the engine pumping water last time out? Did it overheat? If so you have huge problems