I have a 2005 with 4000mi. Bike sits for multiple months without being started. It has developed a problem that I'm curious if anyone else has encountered. It idles rough,and when I take off up the street, it is running rough (like on 3 cylinders) until the engine gets up around 3500rpm,then it runs perfect. I thought maybe it has a fuel injector not working correctly. I rode it about 150 miles and it showed no improvement. It dies at the traffic light when idling, but starts right back up. I removed the spark plugs (original) and they all look the same. Thank you for your thoughts.