First, it's not supposed to start with the side stand down unless it's in neutral. It you have it in neutral and it won't start then you have an issue somewhere in the circuit for the switch on the side stand. Without seeing a wiring diagram I don't know if that could be somehow related to the speedo not working, but if it all happened at the same time then I'd have to believe it's related. Either way, you will need the services of a mechanic that you trust. Good luck.