My bike was stolen a few weeks ago but I got it back and they cut the wires and my key won't turn in the ignition anymore. I was wondering if this was something that I could repair myself and how easy is it to do this? They also broke the steering lock which took a tiny piece out of the frame where the steerling lock locks. I does not seem structural so would I be able to just get a bead welded on where that tiny piece was broken off? Thanks for all the help.