My friend has a 2004 Heritage Softail that has been setting up for a while and will not start. It's getting fire to the cylinders because he pulled the breather cover off and shot some starting fluid in and it busted right off. (until the fluid was gone). But wouldn't stay running. The fuel line was removed and fuel was coming out. Also the gas gauge wasn't working. The gas that was in the tank was old and smelly. The bike only has a little over 2000 miles. I'm thinking it's the fuel injectors all gummed up with all that old gas. BTW: I found out that he was running regular unleaded in it. Any suggestions on what to check or do? Thanks.