Cooling issue 25 hp 1988

[angelohofman]

Hello,

As I have still some cooling problems (at least I guess), does anyone know if the tubes from the head (pointed with the arrows in the attached picture) also belong to the cooling system? How goes the water flow from these tubes, direction and from which point. Are both ends of the tube connected to the cylinder jacket?

Another question, I’m I right that this motor has no poppet valve?

Angelo

[rodbolt17]

pic wont load.
I am guessing your looking at the fuel recirc or "puddle drain" lines.
most of the c25 models had no external cooling lines.