I´m kind of in the same situation. I have a 2003 Ruckus. I´ve removed the cover to check the ignition. The only ´code´ I found on there was apparently not a useful one. I believe I´m looking for C00-99 or D00-99 and the ´code´ i found was a completely different format (Single number, two letters).
I removed the battery to be able to remove the plastic cover for the ignition, and I still don´t see a code anywhere. Been looking hard for answers with no luck. Hopefully someone can help us out. I have the title and registration, if it matters...