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Chris Every terminal on your VR should have a connection. If it doesn't, you either have the wrong VR, or your missing some wiring on your tractor. The manual has a wiring diagram. If you don't have a manual, get one, 90% of all charging issues can be worked-thru using the manual. It's a pretty simple system once you see how it is suppose to be layed-out. The VR regulates generator output by varying the F (field) resistance to ground coming off your generator. Your VR is gounded by one of it's mounting bolts. As with all 6V systems, need good clean connections for good service. Find the metal grounding tab on your VR mount, make sure you have a clean contact to the tractor frame. Your actual ground circuit has to work it's way all the way back up to the dash bolt where your batt. cable is connected. I found my charging was more reliable and robust when I ran a dedicated wire from the VR ground lug right to the dash mount bolt. That shouldn't be necessary... but it is cheap insurance to insure a good ground. By all means polarize your generator first before doing anything else. I don't recall the specific sequence for polarizing off the top of my head, search the archives. You can force your generator to full output, for testing purposes, by jumping the "F" terminal on the generator to a good ground. Don't disconnect anything else, just clamp a wire to the F term. and a ground. Run the engine ~1/2 throttle or better, look at your dash amp meter, it should ramp-up over 10A for sure. I think the generator is rated for ~14A, but have heard guys say they get 20A. After you polarize your generator, test the output the way I described. If your output is OK, look at your V.Regulator and associated wiring is correct and clean. AMP meters go bad, if possible use a multimeter to verify ~7 volts across the battery while running, and double check your amps, that will help you ID your problem. Don't know how many times I've heard about "rebuilt" generators that didn't work, "new" V.R.'s that didn't work, amp meters that didn't work, 12V batteries on a 6V system, batteries hooked-up backwards (should be positive to ground)... etc. Take nothing for granted, test it all to be sure.
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