I have a 08 Road King that I filled up with 93 octane fuel first thing Friday morning & then rode 26 miles to work, everything was fine. I left work that afternoon heading home & only made it about 4 miles and from a stop light it started spitting and sputtering and just running extremely rough & almost died. I got pulled over, shut the engine down waited a minute or so & then tried starting it again & it didnt start. I got it home & tried starting it again & it started, it run but barely & then died after only running for maybe 10 seconds. I think bad fuel but not sure. any help would be appreciative?