This online resource library can answer most of the questions you might have. The library offers manuals, photos, videos and other useful information to help solve your issues and is organized by topic for quick referencing.
Simply select a category from the list on the lower right column. You can see the subcategories if you click on the arrows to the right of your category.
My tikit doesn't seem to stand up by itself when I fold it
Overlatch bolt needs to be screwed all the way in
NOTE: As of 2008, the overlatch bolt has been eliminated, and this note no longer applies. The tikit WILL stand up if you ensure that the left crank is rotated towards the back of the bike before folding.
This bolt is used to make the bike 'overlatch' or fold smaller for packing into the suitcase. It is located under the bottom bracket beside the chain as shown in this photo. Whenever you pack the bike in the suitcase, you will need to "back out" this screw, leaving it in place, allowing the bike to 'overlatch' and thus fold as small as possible. Every time you unpack your tikit and assemble it, make sure you screw the bolt all the way in, so it doesn't overlatch and this stand up when folded.