From the manual...KIPS is an acronym for Kawasaki Integrated Powervalve System. It (they) it can't be adjusted. Depending on your premix and/or jetting, it does need to be de-carbonized from time to time though.

In addition to the site PMKDX listed, try Canadian Dave's KDX forum at www.dirtrider.net. A manual is a good start too.

I did my first topend last summer and I'm AMAZED at the engineering that has gone into the modern two strokes...especially the power valves!

Later,
Chuck