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Rev - In good shape and properly tuned, the Farmall letter series are some of the best cold weather starting tractors ever made. Mine start reliably even when its colder than I care to operate em (below 0). A few tips: 1 Keep ignition in top shape: Good plugs, good solid copper wires, points clean and properly adjusted, etc. 2 Good battery. Use the biggest (highest CCA) rated battery that will fit in the box. If the battery is more than 3 4 years old, replace it now! 3 Good battery cables. Use #0 or #00 cables, and keep em as short as possible. Keep in mind even cables that look good on the outside can be severely corroded near the terminals and severely limit cranking power. Also all power carrying terminals must be clean and tight. If the starter switch is at all questionable, replace it too. 4 Good charging system. Make sure the generator works so to keep the battery charged. If you plow after dark minimize the use of the lights (lights consume nearly all the generator output). Or else keep a trickle charger hooked up and turned on thru the cold months. 5 Carburetor properly set: Should need choking only briefly while cranking. Once running there should be no black visible in the exhaust at any speed. 6 Keep fresh gas in the tank. Fill the tank with gas purchased recently in cold weather. Reason: In the north refiners boost the volatility of gas in colder months. Also gas gradually loses its volatility (hence cold starting ability) just sitting in the tank. If the tank has summer gas in it, dump it into a fuel injected car and replace it with fresh gas. Follow the above and you will not need an auxiliary block heater etc. And you will save a little on your electric bill too! Good luck and keep warm!
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