Thanks for the welcome and the bike is all original. My son was riding one day and said it started to run rough and would quit. The bike would start and go a few feet and just stop like you had turned it off. I found the service manuals and followed the trouble shooting guide under the ignition system. When the bike would not run it had no spark and there would be no voltage at the green and yellow wire on the ignition coil. If you kept attempting to crank it voltage would eventually return to the green and yellow wire. There would always be the correct voltage at the PCM connector for the CKP sensor. The troubleshooting guide showed if there was no voltage it was a faulty PCM. Bought a new PCM and it fired right up and I thought the problem was solved but apparently not. Drove it about 200 yards and it died. I have only had a limited amount of time to trouble shoot but here is what I have done:
1) Replaced PCM
3)Cleaned electrical connections and grounds
4)Drained fuel system and cleaned fuel filter
When you turn the ignition on you can here the fuel pump come on and the IACV valve operating. I have been looking at the service manual while typing this and noticed a faulty engine stop switch could cause no voltage. Not sure how I overlooked that, but maybe I have been looking in the wrong places for the problem.