I recently got a daihatsu hijet s80 something. I dont know which one. The fuel pump was bad on it and the previous owner had an electric one that also didnt work. I get a replacement mechanical one but dont know what lines go in and out of it. There are four places for a line to go. A diagram or a pic of someones fuel lines would be very appreciated
There are four lines. The smallest goes to a constant vacuum port. The fuel pump is lubricated by sucking the oil mist out of the crankcase, and into the pump. There are two the same size, and one a bit smaller. The smaller is the return line to the fuel tank. Of the last two, one is intake, the other discharge to the carburetor. I think the lower is the intake. Try putting your thumb or finger over the end, and pumping the lever manually. The inlet will pull vacuum.
