ok when i first put the alt on my boat it worked. now it doesnt. im trying to understand the way the amc alternater works. peaple on the web say it has to get excited to charge. but others have told me it is just a direct hook up for my app. it is the marine style with the reg mounted on the back. has a yellow wire that i assume just goes to the ignition-on. and the big post for battery charge output. how can i test this without taking to the lake just to fireit up to see if its charging or not as yesterday it was not! and what is the meaning of the articals stating that it had to be excited to charge, wouldnt the ignition turning on the fuel pump do this or do i need to run a light bulb from the aux pole like what would have been in the dash of a car?