I was riding this and it shut off. Towed it to the house, I have no spark. Battery is new and charged. Spark plug is grounded to the head bolt. I have replaced the ignition switch, the run/stop switch. I had these and needed to replace them anyway. Checked all my wiring to the spark unit and it was good. Checked resistance on my pulse generator and it was within spec. So I replaced the spark unit. This is the computer that mounts on the right rear. Still no spark. How do I check for a signal from the pulse generator?

Help,
Andy

 

I have the same issue with my 1990 cbr 600... I am thinking it is the CDI or some sensor located near the flywheel