needing to know the diameter for the water tube and what is the best material to make one out of and the length i'm missing mine and dont know the shape or anything thanks
Maybe you are one of those guys that have a moral objection to buying new parts, or maybe you just don't have the money, but in either case they are available already made to the right size and shape. Just so you know. http://www.marineengine.com/parts/johnson-evinrude-parts.php
I'd buy one also unless they're really expensive... I have no idea of the diameter or length. It's not something I have ever measured. Also there's a bend in it.