OK, Sword of . . . .
The challenge is that most wiring diagrams for the KLR250 show the Wiring Harness for the Bike plugging directly into the CDI Unit. In fact the Wiring Harness plugs into a set of two Pig Tails that are a part of the CDI Unit and these Pig Tail Wires are not color coded the same as the Bike's Wiring Harness that it attaches to. This is because Denso makes the CDI Unit for many customers and then each customer (Kawasaki in this case) hooks it up to their own Wiring Harness. It's luck of the draw that any of the color codes actually match up.
Anyhow . . . I've attached a diagram both as a *.jpg file and as a *.pdf file. This diagram shows three things: 1.) What the Wiring Diagrams, like the one you posted here show, 2.) What you have in your hands and 3.) The translation from one to the other. In other words; what you want.
Let us know how things go for you.
Last edited by Bluehighways; 08-31-2018 at 02:20 AM.