I have a 2008 Nightster with Vance and Hines short shots and screaming eagle air intake. The issue it is having is when cruising at a steady throttle pretty much any speed there will be a sporadic air sucking noise and bike feels like it skips a beat for a second, then you can feel it kick back in and it jerks when this happens. It happens once or twice in a row sometimes, then your fine for a minute then it happens again. Bike does not do it when cool only when it heats up. I cant figure out what is causing this to happen. If anyone has experienced this or knows whats going on please help!

 

Think bad spark plugs would do this anyone?