Started having an intermittent problem when accelerating hard.Bike is bandit 1200 with gsxr coil spring conversion.Feels like sometimes there is a stutter but only for a brief moment then fine again!!Really hard to describe only happens when high up in rev range.Sometimes is fine for a few days then reappears.Does not feel like fuelling or ignition.Feels more like transmission maybe!!Anyone have any thoughts or possible causes??Dogs not engaging properly or shift fork maybe???Had the bike on the dyno last month and no sign of clutch slip or anything. Doing my head in that's for sure!!Any help/suggestions greatly appreciated.