Bringing it back from the dead

I’ve recently bought a WR250R from an auction, it’s a salvaged bike due to theft. Obviously I was just looking for a project and I definitely have one now. First thing I replaced was the ignition lock because it was destroyed, then I installed a new battery. I had assumed now I’d have power to at least see what the mileage is. But there’s nothing, I’ve checked all the fuses in the box and the main 30 amp but they’re all good. It is missing the headlight and front signal but I didn’t think that would be necessary yet, any advice? Also, what are these connections for?gl[img:a269]https://i.servimg.com/u/f49/20/09/81/08/f9367d10.jpg[/g][g/url][url=

Looks like its just to join the wires. The black is probably all grounds thats connected together.