My 25 HP Mercury 2 stroke (which has been running perfectly for years) just recently experienced some rough idling and would shut off after a while. I changed out the spark plugs, took the carburetor apart, cleaned it out and got it running again, but it was still shutting off after a couple seconds. After it would run for a little bit, I noticed this almost yellowish, frothy liquid - below the cylinder block, laying in the bottom cowl (see images with red arrows).
I cleaned it up with a paper towel and it appeared to be the fuel/oil mix. Nothing is leaking out of the carburetor or any of the fuel lines. Could it be a bad seal or gasket in the cylinders, and maybe some water is getting in there causing it to look almost yellowish and frothy and is leaking out the bottom somewhere?
Thanks in advance for any help or recommendations anyone can provide.
I cleaned it up with a paper towel and it appeared to be the fuel/oil mix. Nothing is leaking out of the carburetor or any of the fuel lines. Could it be a bad seal or gasket in the cylinders, and maybe some water is getting in there causing it to look almost yellowish and frothy and is leaking out the bottom somewhere?
Thanks in advance for any help or recommendations anyone can provide.