[Keith True]

I've been reading all this,and come to the same answer.You have a bad connection.The battery is the regulator,and if the generator can't read it,it will make up to 40 volts.You should NOT be putting out 10 volts.The third brush regulates amps,not volts.Next,you are using a continuity tester,not a test light.A test light doesn't have a battery,a continuity tester does.When you stated you were getting power to things with the fuse out,I knew you were feeding the system yourself.I'm not buying that you have a short,a short won't partially feed a system,it will go bang,and melt something until it burns up and becomes an open.You need to start at the battery,connections,clean,bright and tight.Both inside and out.Cables rot inside the terminals too.Ground to frame,and from there to the transmission.Too much rust,paint and grease to depend on grounding through the mechanical parts.They're pretty simple,you just need the right tools and a little pointing in the right direction.