We are all free to do what we want but we are also free to give advice. One moderate sized 12 volt will crank it just fine unless you use it in real cold weather. Up until a few years ago I ran two bangers year round, mainly a 630 but also a 51 A. They had two 6's years ago and started very well, but I was always messing with corroded cables. After I switched to one 12 in both tractors the cable corrosion trouble was reduced by 75 percent. There is something about that cross cable between the two batteries that spells trouble. When the 630 was the loader tractor it would start dependably at -20 with one 800 amp battery. I have had lower amp batteries, like 650 amps in the 630 and it would sometimes start at -20 but if there was a hickup I would be out of luck. But that's at -20 for Pete's sake. The 51 A doesn't start quite as well as the 630, maybe because of the 12V coil. I would expect a hot mag to start it better than the distributor but I have no evidence to prove it. Both tractors are fair weather tractors now so I don't have to worry about using a big battery anymore.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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