Even though your ignition isn't directly connected to the voltage regulator, it is still getting power from from it indirectly. A bad VR can cause spikes in the system. Is there a fuse between the VR and battery? If there isnt, then a bad VR can damage things. I'm not saying that is definitely what happened, just trying to find possibilities.
Excellent information. Thank you.
I remember the dealer putting one in my bike as a factory recall. They mounted a post in the battery box. They attached the VR line to the post, and then installed a new line with a 40 amp fuse between the battery and post. That seems like something that should have been standard equipment, but better late than never, i guess.
It is not unusual for a Cam sensor or a Crank sensor to crap out and often it is intermittent as well. lot's of heat in the crank case area and contributes to the decay of wiring. VR's also like to crap out either by shorting out or having an overcurrent. Should charge at approximately 14 vdc and not over 14.5 vdc. A fuse or CB is absolutely needed between the VR and Battery. Make sure the VR has a clean ground. You should also have a fuse or CB between the battery and your controller. A shorted battery can do a lot of damage.
