Hi, I know there has been some debate as to using premium petrol on here, but I was wondering if anyone has had any specific issues such a carbonation on plugs and blocked up carby as a direct result of using premium? I am very new to riding and bought a duc monster 400 as part of the lams scheme and couldnt get it started late last week. on my ride to work it needed more choke than normal, then after about a 20 minute highway run it stalled on some quieter streets after coming to a full stop. that night it wouldnt start at all. After having eventually getting to a mechanic the guys were saying that it was most likely caused from running premium. Just wondering if anyone had similar experience with their bikes?