carb issues 1952 g john deere

Good Morning! My son recently purchased a 1952 G john deere. Had a cracked fuel bowl, found a replacement bowl and had the neighbor put a carburetor kit in. Finally got it to start yesterday, but does not run the best. ran it out of fuel, put new back in. Didn't want to start. Ended up pull starting it. Still misses, pops and farts. Can some one give me a base point where to adjust the idle and power needle settings. I just put a set of autolite 3116 plugs in. This tractor has the high compression pistons in it. Would it run better on tractor fuel? Ignition? Any help will be most appreciated!!! THANK YOU-Happy
 
You don't say whether it ran, before you started working on it. If your neighbor didn't do rough adjustments on the mixture screws, then he probably didn't drill out the "secret" idle passages, either. That's where I would start.
 
You didn't say whether it has the "big nut" G carb on it. Some with high compression pistons will actually run better with a DLTX 71 late gas A carb on them. Back in the day, the update to convert Gs to gas from all fuel The John Deere mechanics actually changed the carb to the A carb.
 
All suggestions so far are good, but don't forget ignition, esp points condenser and wires. Many many years ago an old timey mechanic told me that I should always bet it's an ignition or valve problem not the carb. I'd not win every time, but never go broke. Good luck!
 
1 1/2 turns out on each is the usual staring point. Bad condensers will make it run like it has a dirty carb so don't overlook that.
 
I agree 100% with Loren. I do rebuild those carbs. And it doesn't matter whether it's a "big nut 51" which they came with or and A or G carb. If carb is right (and of course ignition) ) they will run perfect. People "throw kits at them" left and right...a "kit" does not in any way constitute a re-build for one of these carbs. I hardly ever have to replace a float , needle/seat , load nozzle , load/idle needles , or any number of things these "kits" charge you for. 98% of the time it is warn throttle shaft / bushings / throttle plate , and plugged up vents and/or idle passages. Doesn't take much to make it run just exactly like you described. Be glad to talk phone with you about it. Thanks.
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If it ran out of gas, it's possible that some additional rust, dirt, or debris from the bottom of the fuel tank made its way into the carburetor. If closing the choke helps you may need to open the idle jet or clean the carburetor again.
 

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