Not a lot goes wrong with a carb in general, most cases it is not properly set up and adjusted, the float may be set too high or not high eneough, your fuel/air mix screw may not be correct..black deposits on the plugs signals too rich a mixture, perhaps from being choked but the carb needs to be adjusted and ensure the float is not sticking..you most likely do not need a new carb but you definately need to go through the carb according to your manual..I have a CA Allis manual around here somewhere but it could take some time to find it..hopefully someone here or on the Allis Chalmers board will post some info for you.
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Today's Featured Article - Using Your Tractor: Creating a Seed Bed - by Chris Pratt. When I bought my first old tractor, I had only one idea in mind. It wasn't the preservation of old iron since at that time, I was unaware that people even did this. It wasn't to show off my restoration skills (though I had tried my hand at a couple of old motorcycles in my teens and if I recall correctly, those old motorcycles were sold in boxes about one quarter finished). It wasn't to relive memories of Grampa, Dad or myself out on the back 40 nursing the Farmall pulling too many b
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