I went ahead and rewound the exiter coil, ended up with 345ohms when finished, I intalled it and the engine started right away, but it started backwards,

, I reversed the coil wires and then worked good. Saved about 200$ +.
This is my first KDX and I love it. It's a very easy ride. Putting the front wheel over obstacles is piece of cake with just a quick throttle kick. Good bike for not so young like me, since it's power comes smooth and predictable. I think I'll stick with this bike for a long time.
JT