OK bear with me. Not a mechanic. 2016 R3 300hp overheated today on the lake. Took it home and checked impeller. Brand new as suspected. Greased, replaced. Put a hose on the flush line. Ran great stayed around 160 degrees. Water coming out where it should be and the water vents so I'm thinking no blockage. Impeller spinning OK. Must be raw water issue. Hoses tight, cover on flush line tight. Which hose to the pump is the intake from the vents? The big one or the smaller one? Thinking of blowing it out from the pump and i don't want to do the wrong one. Thanks for the help.
