My mistake, words are hard (at least on a cell phone). Here is a little info on *needles* in case you haven't seen it yet.
The DIY
http://www.ninjette.org/forums/showthread.php?t=9465
Other info
http://faq.ninja250.org/wiki/Ninja_2...le_Information
Edit: Not sure why I thought jets, as I am actually in the middle (taking a dinner break) of shimming myself, but some recommend changing to a 100 main jet also. I will likely be doing that after I see how the shimming works out.