I have a 2000 300ex that I have been having electrical problems with. It is only getting power to one side of the solenoid, so its not getting power to the starter, and it clicks when I press the starter button. Then when I try to jump across the solenoid the starter does nothing. I already replaced the solenoid, battery, rebuilt the starter, new starter button, tryed a different cdi box, cleaned all the contacts, put new cables on the battery, new fuse. And this all started when I put the rebuilt starter on, before I took the starter the off I could get power to it. So i have no idea whats going on with it, any help would be appreciated.