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Al -- There is a good place to begin. Go to the JD-H Restoration Site (below), one-click on CARBURETORS, then just sit back and take in some basic data about JD tractor single-induction carburetors such as on your JD-A. As for the flooding -- two things come to mind here (1) the float may be set too high which (in turn) will allow too much fuel into the carburetor, and (2) the IDLE & LOAD needle settings may be too far open thus allowing the engine to draw too much fuel. Good initial settings for the IDLE & LOAD needles are: IDLE from 1-1/4 to 1-3/4 turns out, and for the LOAD, from 3/4 to 1 turn out. Be very CAREFUL! In order to set the needles, you must first turn them down to the seat & then back off by the amount indicated. WHEN YOU TURN THEM DOWN, GO EASY SO THAT YOU DO NOT DAMAGE THE DELICATE NEEDLE POINTS. Now -- carb adjustments are a troublesome feat for many. Settings are not critical in starting a tractor. When making carburetor adjustments, engine temperature should be in what we call the operating range -- that is from 180 to 200� -- surely not below 160� -- as many of us try to do! And I won't go into how to adjust the carb in this reply -- your operator's manual has the procedure. Oh -- BTW, if you do not have the Operator's Manual or Parts catalog for your tractor, call (800) 522-7448 with Model, serial number of the tractor in hand along with your credit card -- and order them! Also -- while you are reading the piece on CARBURETORS at the JD-H Restoration Site, note that there is a no-wrench test (toward the end) you can perform on your carburetor that will tell if both circuits (IDLE & LOAD) of the carburetor are free of obstruction - like RUST. Running the test can't hurt. Read the piece, play around some with the carb settings, perhaps run the test; then post back and someone will pick up with you from there. BTW, Welcome to John Deere Land! (PatB)
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