The CDI's are located at the front of the frame, under the fuel tank, one each side of the RC Valve servo motor.
Use this page from the forthcoming NSR Workshop Manual as a guide to its' location.
Please note: this scan is only a "pre-production" page uploaded for the benefit of this post. The finished Translated Workshop Manual will be the normal high quality images and text that NSR-WORLD.COM prides itself on! (OK Charles?!) ;)
A couple of names to try for a replacement CDI are Pradeep Loganathan or Matt Patterson from TYGA performance.
Please mention NSR-WORLD.COM if you order from either of them.
Andy.
NSR-WORLD.COM