This has happened to me probably 5 times since i bought my bike used 4 years ago and it happened again yesterday after work. I get out of work, hop on the bike, turn the ignition on, hold down the button 'till the light goes off on my instrument panel, then press down the start button. 99% of the time it always starts but this time it just kept turning over and wouldn't fire. After repeated tries, maybe 5, and with the onlookers from work making their usual anti Harley comments, I decided to give it a rest for about 5 min. Tried again and it still sputtered. So I waited about 10 minutes again and tried once ,more and she finally fired up. My question is: Why does that happen? I mean, I start my bike all the time without any problems so why does this happen? Do I need to add maybe a fuel additive or something? Thanks!