Mine came with the worst instructions I have ever received on a new item. There are no indications on which side is the input and which side is the output, I had to go to YouTube and find a video on how to hook up the hoses to the proper side. The hoses are way too soft and constantly kink in particular the fuel delivery hose is way too pliable, my unit looked to be new however when I first removed it from the box and was looking the motor over and tilted it, I spilled diesel fuel on my living room carpet, was not happy about that, overall the unit is nice it just needs a few tweaks to make it perfect.