Have a clean glass ready, remove the plug and catch what comes out. It should be clean gas with minimal trash or visible water on bottom.
Turn on the fuel pump and watch the flow. It should have a steady stream of gas, not a trickle or drip. The fuel should be clean, no trash or water. If dirty, the same will be in tha carb, it may need to be opened and cleaned, the tank removed and rinsed out.
If the flow is not good, check the output of the pump. The pump could be starved from the tank.
There is also a screen in the fitting at the carb inlet.
If all checks well, look at the points adjustment. Be sure the distributor shaft bushing is not worn. Any side play and the points will not stay set.
Run it again until it quits, be ready to check the spark immediately when it quits. It should have a hot blue 1/4" spark at each plug end of the wires.
Feel the temperature of the coil. It should be about the same temperature as the surrounding metal parts. If it is hot, too hot to hold, the coil could be bad, or the wrong coil.
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Today's Featured Article - New Life for an Old Allis - by Tyler Woods. My friend Jon, has an old '39 Allis Chalmers B. He thought it a marginal tractor that had long since served its time. She smoked terribly and never had much power but he couldn't afford another so he was limping along with what he had. Jon's Allis has a small front loader and though it doesn't carry much, it serves his needs. It was the hard starting and low power that made him think it was time to replace the old girl. Jon called me to help him discover why his tractor wouldn't start
... [Read Article]
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