The tractor is 6 volts, it's my first tractor and I'm learning so please be patient. I have replaced the coil, distributor, plug wires, plugs, rebuilt carb, replaced starter relay, and new ignition. Most recently made the mistake of having a friend of a friend work on it to run the new wiring harness. Now I have gotten the tractor to start finally, but it's starting when I hit the key, not the push button starter. What I'm wanting to know is if it's a wiring problem and there's just something crossed or if I need to get a new voltage regulator. Also after it starts it revs high and stays High.