If it is the ignition switch, I would say yes, you can take it apart and possibly service the switch. Be careful, once you start to open it the springs and small parts seem to jump out and hide.
If you need contacts, springs, or other parts, let me know as I have a switch that is missing one of the contact plates. If you tear yours apart and decide you just want to replace it, let me know and I will pay for shipping on the old one. I just need a couple of parts to have a spare working ignition.

Here is the final product when I MacGyvered mine with a paperclip to get home once.
