Deere Oliver Farm
Member
Just bought a MM ZB tractor from a gentleman here in New York. Before picking it up, I looked up specs that stated it uses a 6 volt system with positive ground. Put the 6 volt new battery in- no spark. Contacted him. He said it started it on a 12 volt negative ground. So I put the 12 volt in and she started immediately. Please note- there is no alternator upgrade-still uses a generator. Everything looks as a 6 volt should. There is no resistor in the line either. New amp gauge doesn't move after starting it. Excuse my lack of electrical knowledge that's why I ask for help. And a big thank you to my responders.