Re: Nissan power pack
The 12 is in fact obsolete, but that doesn't necessarily mean that it's bad... All the smaller new motors are 4-strokes today, for example.
In order to properly troubleshoot the ignition, it would be a good idea to test components to verify which part may actually have failed. Just swapping in a CD module may not fix a problem, if for example, the problem is under the flywheel.