Hi. Joined the forum to slowly build my go kart. I’ve been researching models and I came to the conclusion to use a 500cc two stroke that is liquid cooled and has EFI. Reverse would be nice too. I hear they are plagued with problems that I’m going to try to solve in the process. What are all these problems anyway? I would like to know before I start purchasing all the pieces I need. Engine, clutches, harness, gauge cluster, shafts, etc. I’ve never seen one to know and was hoping for input and suggestions. Is it a return style fuel system? Is the water pump impeller plastic like a Volkswagen? Stuff like that. I’m a mechanic on a farm in south Florida so it gets hot down here.