Hi All, Mate of mine is running a 2010 blade track bike which we’ve been having a bit of a nightmare with. Was running fine until a day at Donington where it developed a misfire between 6 to 8k rpm. Seemed to rev clean up to and beyond this range. It’s a stock bike but the harness has been butchered to track spec. We have been through plugs, fuel pump filter, fuel pump, and swapped a few other bits and pieces with another bike. I’m thinking there’s something in the harness but just wondering if anyone has had a similar problem. Any advice appreciated!
