My main problem is that I have a gas leak in my evinrude 25hp outboard. Unfortunately, I don't know what year the motor is, so I can't buy a book to find out exactly what part is leaking.<br />Model: 25552B Serial: E0002284 HP: 25 What year?<br /><br />The leak is coming from what appears to be a filter which is bolted to the block. The main fuel line comes directly into this unit, which is about 2inches across, square in shape, and has a couple gaskets in it. From there another line goes to the carburetor. What is this part, what is it called, and 'bout how much is it going to cost me?