Hoping someone can help a couple of rookie mechanics.\nI have a Interceptor VF500R that I can't get running....seams to be a\nfuel issue.\nWe have replaced the fuel pump, the fuel on/off switch, and have\nbypassed the fuel relay switch. It still wouldn't start.\nIf we unplug the fuel line from the gas tank and drop it into a can of\ngas....bike starts right up. What, besides the fuel on/off switch\n(which has already been replaced) could cause the bike not to start?\nThere is a hose (smaller than the fuel line) that runs from the on/off\nswitch. Seams to be some type of vacuum line. What is it's purpose\nand what does it run to ?\n\nAny help would be appreciated.