Electrical connections everywhere get hot, resistance goes up and power goes down. Large 2/00 electrical cables direct from the battery to the starter solenoid. Direct 2/00 cable from the battery to a bolt on the starter body/frame. 8 or 10 gauge wire from battery to starter switch back to starter solenoid. The Wallmart 4 and 6 gauge 12V cables are only good for gokarts and lawn tractors. Make certain the coil polarity is correct. If the battery is + to chassis the coil + goes to the points and the - to the live 12V. Is the ignition system a bypass design with a 6V coil and ballast resisitor? What size of battery? A scrawny discount battery isn"t worth beans summer or winter. The only battery to use on any machine is the very highest CCA rated battery that will shoe horn into the battery box. Note I said CCA not CA rating, much different and designed to fool purchasers. Another biggy is resistor core ignition wires. Heat affects them too and causes weak spark. Toss the resisitor wires and plugs as far as possible,install solid core wires and plugs like Autolite 3116,216,473 etc.
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Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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