How To Jump Start A 6 Volt Positive Ground Tractor. Jump start a positive ground car - Tractor Talk Forum - Yesterdays Tractors Jump to forum order in days for posts. Thu Mar 07 2013 802 pm Post subject.

No harm will result. I have seen 12 volt cars jump 6 volt tractors but that was years ago before cars had lots of sensitive electronics. Ground negative jumper cable to the frame of tractor and touch positive to bolt on starter where starter cable is connected.
You jump start something with a positive ground system just like any other piece of equipment.
Disconnect the lead from the starter to the starter solenoid at the starter solenoid. No harm will result. Many of our old farm tractors and trucks where positive ground systems before I converted them to standard 12 volt negative ground alternator setups. Connect the 12V vehicle Positive to the 6V vehicle Positive.

