Discussion Starter · #1 ·
It just started doing it today. I accidentally ran a tank of regular through it. But it was doing it after I filled it up with 93. The funny thing is I was just cruising too. I was by myself and I wasn't beating on it. If you run it at a constant rpm(around 5 or 6) it runs real rough and you can feel kind of a viberation. It almost feels like when you are running out of gas, but it's full. Could it be a plug gone bad? I took them all out and they look, OK. I will have the new ones tomorrow morning. I am not positive, but I think they have never been changed. It has 5500 miles on it. Also what does it mean if the bike back fires and shoots a blue flame when you shift(it done since I got it.) The bike it a 97 ZX6R. The only mod is a full Muzzy exhaust. Thanks for the advice in advance.