I have a 1978 yamaha exciter 440. I hooked up the fuel lines but not sure if they are right. The original fuel lines rotted away. I hooked them up thinking that thry were right but no gas is running through the lines. I poured gas into the the tank but there is still no fuel in the lines. If anyone knows how to hook the fuel lines up and why no fuel is in the lines please let me know. Thanks.