Sorry for the vulgarity but I wanted everyone to know which line I was talking about. LOL I got the 2004 on the water but I don't have a line going out to a tattle tail so we can verify cooling flow. I don't have any leaks inside the hull and all lines that were on the ski are connected. Everything seems to be working. I'm sure there is a TEE or something missing from the system but I don't know where it would go and i possible I'd like to install whatever it is in the factory location. Oddly enough I have a 2003 GTI RFI but I just pulled the engine the other day. Help is appreciated. I am looking, I've seen diagrams..... This is the ski I just finished restoring. Have a great weekend !!