If you have no neutral light n the dash, the electrics don't know it's in neutral. Although the switch may well work, but if the signal is lost, so is that part of the starting/sidestand interlock. Have you tried pulling the clutch in and starting?
It is nog starting. I will bypass the clutch switch but need a good look at the wire diagram to be certain wich 2 wires I need to connect
You really need to get the neutral light lit on the dash to rule the side stand interlock out. Is the clutch switch in place?