Ok. Had the tank off today. I was told on here by someone, can’t remeber who, that when the fuel pump comes on, it pumps the fuel out of the tank, to the rail to each injector, then excess goes back up to the tank via the front pipe on the rail, closest to the front of the bike.(the one,ringed). Only, I gentle put a thin screwdriver up the ‘inlet’, but it would only go in about an inch or so, then stopped as though it was a ‘dead end’, so to speak. Is that right? It seems to me that the fuel that passes the injectors just goes up the pipe to the tank, and then stops. Is that how the pressure for the injectors are formed?